1658

1658

in Tags

In 1633, in South America, Jesuit Father Antonio de Calaucha noted the surprising properties of the “fever tree” in preventing malaria. These trees belong to the Chinchona genus, which produce quinine, an antimalarial. In the following years, the use of quinine spread among the Jesuits in Peru. Between 1640 and 1650, Father Bartolomé Tafur brought some bark to Rome. The 1655 conclave in Rome was the first without a single death from malaria, which was endemic in Rome at the time. The Jesuits then began importing large quantities of bark to Europe, and a thriving trade ensued, reaching much of Europe—except in England, where “Jesuit dust” was viewed with suspicion by Protestants. Oliver Cromwell himself refused to be treated by the papists and died of malaria in 1658. Then, in 1670, another anti-malaria drug gained notoriety in England: Robert Talbor’s, and was used even by royalty and all the nobility. Then, after the death of Talbor, who had become rich thanks to his miracle cure, it was discovered that his drug was based on quinine…

October 14, 1658

October 14, 1658

in Tags

Siege of Mortara (Kingdom of Lombardy-Venetia). The Duke of Modena, Francis I, is struck by malarial fever and dies in the arms of his son Amerigo. Although Francis I had achieved glory in war, he was also a great builder of peacetime works: the Ducal Palace (by the architect Bartolomeo Avanzini) and the Ducal Theatre. His son, Alfonso IV, succeeded him, but died of gout shortly thereafter. Alfonso’s wife, Laura Martinozzi, a niece of Mazarin, then became Duchess. She was one of the so-called Mazarinettes, one of the nieces of Cardinal Mazarin, a deacon of the Catholic Church, active primarily in France, where he served as Principal Minister under the reigns of Louis XIII and Louis XIV, succeeding Cardinal Richelieu. Laura Martinozzi, 23 years old at the time, assumed the regency of the Duchy of Modena for her two-year-old son, until he was old enough to reign. She implemented a wise economic policy and completed the Ducal Palace. It was the only case of a female regency in the centuries-long history of the Este State.

October 5, 1658

October 5, 1658

in Tags

Modena. Laura Martinozzi, mother of the future Duke Francesco II and temporary administrator of the duchy, gives birth to a daughter, hers and Alfonso IV: Maria Beatrice d’Este, who, at the suggestion of the King of France, Louis XIV, would become Queen consort of England, Scotland, and Ireland, marrying James Stuart, Duke of York. She was the greatest political figure born in the shadow of the Ghrilandina. As a child, she played in what is now Parco XXII Aprile (a few hundred meters from where I live, then Villa Pentetorri).

1657

1657

in Tags

European scholars publish the first transcriptions of cuneiform, rediscovered only in 1618 by the Spanish ambassador to Persia. Local populations had always had this script before their eyes for at least three millennia, but no one, as far as we know, had ever bothered to decipher it. According to Yuval Noah Harari, the difference is one of approach: Western culture (which would spread throughout the world in the late 20th century) is based on the assumption of ignorance, which drives conquest and discovery, while most previous cultures are based on the assumption of wisdom. In the 1830s, British officer Henry Rawlinson was shown an enormous stele with inscriptions in cuneiform, Old Persian, Elamite, and Babylonian. He enlisted a Kurdish boy to hang it from the gigantic stele and copy the entire text, letter by letter, which was then sent to Europe and deciphered. For the first time, doors open to lost kingdoms of millennia past: Sumerian bazaars, Assyrian kings, Babylonian bureaucrats.

1656

1656

in Tags

Christian Huygens builds the first pendulum clock to be used on a ship to estimate longitude; he calls it Horologium

July 26 – 27, 1656

July 26 – 27, 1656

in Tags

Netherlands. The leadership of the Jewish-Iberian congregation in Amsterdam pronounces the herem (social exclusion from the group—but different from Christian excommunication) expelling the philosopher Baruch Spinoza from the community. Born in Amsterdam in 1632 to Portuguese parents, he converted to Judaism in Hamburg and studied with freethinkers and Jesuits. The “horrible heresies” and “monstrous acts” he is accused of have never been made explicit, and thus remain an unsolved mystery.

1656

1656

in Tags

Cretan War. Second Venetian victory in the Dardanelles, in two consecutive years. According to Hammer, a historian of the Ottoman Empire, it was the worst Ottoman defeat since Lepanto.

1656

1656

in Tags

Christian Huygens publishes the discovery of Titan in “Saturni luna observatio nova”

1655

1655

in Tags

In 1633, in South America, Jesuit Father Antonio de Calaucha noted the surprising properties of the “fever tree” in preventing malaria. These trees belong to the Chinchona genus, which produce quinine, an antimalarial. In the following years, the use of quinine spread among the Jesuits in Peru. Between 1640 and 1650, Father Bartolomé Tafur brought some bark to Rome. The 1655 conclave in Rome was the first without a single death from malaria, which was endemic in Rome at the time. The Jesuits then began importing large quantities of bark to Europe, and a thriving trade ensued, reaching much of Europe—except in England, where “Jesuit dust” was viewed with suspicion by Protestants. Oliver Cromwell himself refused to be treated by the papists and died of malaria in 1658. Then, in 1670, another anti-malaria drug gained notoriety in England: Robert Talbor’s, and was used even by royalty and all the nobility. Then, after the death of Talbor, who had become rich thanks to his miracle cure, it was discovered that his drug was based on quinine…

1655

1655

in Tags

Christian Huygens correctly hypothesized that the “handles” of Saturn observed by Galileo Galilei were actually a flattened ring orbiting the planet.

1654

1654

in Tags

Nicolas de Bonnefons, valet to King Louis XIV, wrote the cookbook Les delices de la campagne. It was one of the first cookbooks to replace spices with vegetables and fresh herbs. It also emphasizes the natural flavor of meat. Cloves appear in only 9% of recipes, while nutmeg appears in 5%. Pepper appears to be a strong presence, at 18%, but in reality, it is almost always a generic “pinch of salt and pepper,” much like that often found in modern recipes. Sugar is reduced equally rapidly, limited to 8% of recipes. The flavors separate, and sweet dishes collapse, ending up at the end of the meal: dessert.

1654

1654

in Tags

Brazil: The Dutch surrender and cede control of Northeast Brazil to the Portuguese.

October 27, 1654

October 27, 1654

in Tags

The last letter in the correspondence between Pascal and Fermat on Chance. A few weeks later, Pascal sat in a trance for two hours; some thought it was a mystical experience, others that he had definitively left the planet of sanity. However one interprets this event, Pascal emerged transformed.

1654

1654

in Tags

Pascal, Fermat: Calculus of Probability; the lawyer Pierre de Fermat notes in the margin of the Greek-Latin edition of Diophantus’ Arithmetica his famous last theorem (conjecture)

1654

1654

in Tags

Delft, Netherlands. A giant gunpowder depot explodes near the port, causing fires throughout the city, which takes several years to recover from the disaster.

1653

1653

in Tags

The Dutch vessel Sparrow Hawk ran aground on its voyage from Taiwan to Nagasaki, carrying a cargo of pepper, sugar, and 20,000 deer skins. Of the 64 men on board, 36 survived and reached shore on Cheju Island. Nothing more was heard of these men for a while, until 13 years later, eight of them reached Nagasaki and told of a Dutchman, Weltevree, who had been living in Korea for 39 years (he too a castaway from another Dutch expedition from Taiwan to Nagasaki).

1652

1652

in Tags

South Africa. The Dutch’s arrival in South Africa, starting from Cape Town, did not encounter much organized resistance from the indigenous people, only a few Khoisan villages. They did not encounter dense Bantu populations as in other parts of Africa, and therefore they can rightly say they arrived in South Africa before the so-called “black” Bantu. Indeed, the latter, coming from Nigeria and Cameroon, stopped at the Fish River, 500 kilometers before Cape Town. Once the Dutch came into contact with the Bantu, armed with iron weapons, in 1702, there was violent fighting of uncertain outcome. The Dutch began advancing slowly, one or two kilometers a year, and it would take them nine wars and 175 years to conquer South Africa. The Bantu stopped before Cape Town because their crops required summer rain crops, while European crops, on the other hand, required winter rain crops.

1652 – 1664

1652 – 1664

in Tags

First Anglo-Dutch War. The English unsuccessfully attempted to gain a foothold in the East Indies (now Indonesia), but they tried to harass the Dutch wherever possible. In one such attack, in 1664, they occupied the colony of New Netherland, whose capital, New Amsterdam, was located in the great estuary of the Hudson River, on the island the natives called Manhattan (Island with Hills). It had been founded in 1624. The English renamed it New York, in honor of King Charles II’s brother, James, Duke of York, the direct promoter of the initiative and the supreme admiral of England.

1651

1651

in Tags

The Jesuit Giovanni Battista Riccioli published the Almagestum Novum in which he described the lunar topology and distinguished between mountains and plains, introducing many place names still in use today, such as Mare Tranquilitatis, where three centuries later the Apollo 11 mission would arrive, carrying the descendants of an English colony from a part of the world recently discovered in the Jesuit’s time: America.

1651

1651

in Tags

A document from Barbados stated that “The principal intoxicant produced in the island is Rumbullion, also called Kill-Divil, made from distilled sugar-cane, a hot, infernal, and terrible liquor.”

1650

1650

in Tags

The Galilean method of observing Jupiter’s Medicean satellites to determine longitude became popular among cartographers, but was only used on land; however, it allowed a qualitative leap in the accuracy of maps.

17th century

17th century

in Tags

The foundations of the modern market economy were laid: corporations. Before the 17th century, if you owned a business, you were responsible for the entire enterprise. Chartered Companies introduced the concept of “limited liability.” The corporate entity was responsible for the debts, not the individuals who owned the business. Their exposure was limited to their initial investment. Thus, the risk was shifted from the debtor to the creditor. This greatly increased investment, entrepreneurship, and the stock market.

1650

1650

in Tags

Native Americans. In South and North America, they constituted 80% of the population in 1650. By 1825, they still accounted for 59% of Spanish America, 21% of Brazil, and 4% of Anglo-Saxon America. A strong influx of immigrants from Europe began.

1650

1650

in Tags

European cuisine changed dramatically, limiting the use of spices, separating flavors, and popularizing coffee, tea, and chocolate—three beverages that would eventually replace spices due to international trade. Coffee came from Yemen and Ethiopia, tea from Sichuan, China, and chocolate from the Amazon basin and Mexico. Tea on the London market cost about £10 a pound (about €1,500 today for less than 0.5 kg), while a pound of coffee on the Paris market cost €2,000 today.

1650

1650

in Tags

The oversupply of pepper on the European market caused a definitive collapse in its price. By the mid-17th century, the price in London had dropped to 7 pence a pound (12 pence = 1 shilling). Pepper consumption had become widespread, and its trade no longer had the high added value it once had.

1650

1650

in Tags

Magdeburg, Germany. Otto von Guericke’s scientific research, which made him famous during his lifetime and for which he is still remembered today, focused on the study of the properties of air and vacuum. He became famous for his invention, in 1650, of the first pneumatic pump for creating a vacuum and for his famous Magdeburg hemisphere experiment. The aim of the experiment was to demonstrate the enormous pressure exerted by atmospheric air on all bodies within it. To do this, in 1650 at the Imperial Diet in Regensburg, he constructed two bronze hemispheres that he fitted together; then, using a pump, he created a vacuum within them. The force that atmospheric pressure exerted on the two hemispheres was such that not even three pairs of horses could separate the two hemispheres; once the air was reintroduced, the two hemispheres separated on their own, effortlessly.

Around 1650

Around 1650

in Tags

European armorers (or gunsmiths) learned to make triggers that wouldn’t accidentally fire every time the rifle was hit. With this invention, muskets replaced arquebuses.

1649

1649

in Tags

After the execution of Charles I, the English engaged in heated discussions about desirable forms of government. Many cited the example of the Venetian Republic, with its centuries-long institutions, its curbing of violence, its freedom, its recourse to voting and debate. Their arguments would return to prominence a century later in the oratory that would create a new Republic in America.

January 3, 1649

January 3, 1649

in Tags

King Charles I is beheaded in England. Civil war had raged since 1642, pitting “knights” against “roundheads” (those without the heavy curls that were fashionable among the aristocracy). The nobility was almost entirely behind the king, while the merchant bourgeoisie, artisans, and small landowners sided with Parliament. Initially, Charles I’s army prevailed, but then came the decisive intervention of Oliver Cromwell, a Puritan country gentleman, willing to do anything to combat the idolatry he identified with the Catholic religion and the king. Cromwell’s Ironsides definitively defeated the royal army in 1648 at Preston. The monarchy was abolished and a republic established, and on January 3, 1649, King Charles I was executed after being condemned by a court in accordance with the law established by Parliament. This was a revolutionary act, unique in Europe, which reverberated throughout the continent’s monarchies. But then Oliver Cromwell’s role as “Protector” would increasingly take on the characteristics of a monarch, until the restoration of the Stuarts in the person of King Charles II in 1660. The new parliament would have a strong Anglican presence, and with measures against not only Catholics, but also Quakers and Presbyterians.

1648

1648

in Tags

With the Thirty Years’ War, the long era of pikemen, armed with 3- or 4-meter spears, ended. Gradually, musketeers, armed with firearms, gained ground.

October 26, 1648

October 26, 1648

in Tags

The Treaty of Westphalia not only ended the war between Catholics and Protestants in Europe, but also several related conflicts, including that between the Spanish and the Dutch, by prohibiting, among other things, the Dutch from entering the port of Manila. The Dutch were gradually pushed out by the English as the dominant trading power. The French invasion of Holland in 1672 brought an end to the Short Dutch Century. Furthermore, it effectively invented the nation state as we know it: it allowed states to exercise sovereignty within their own borders and limited their influence beyond, and in effect, it consequently severely limited the powers of religious authorities.

October 26, 1648

October 26, 1648

in Tags

Treaty of Westphalia: The principle of non-interference in national sovereignty was established. The Treaty of Westphalia was signed, ending the Thirty Years’ War and radically shifting the balance of power in Europe. The Thirty Years’ War, a series of conflicts fought by various European countries for various reasons, had broken out in 1618 following the attempt by the King of Bohemia (the future Holy Roman Emperor Ferdinand II) to impose Catholicism throughout his dominions. Protestant nobles rebelled, and by the 1630s, much of continental Europe was at war. As a result of the Treaty of Westphalia, the Holy Roman Empire was dissolved, Sweden gained control of the Baltics, the independence of the Netherlands from Spain was fully reaffirmed, and France was recognized as the leading European power. The war had ravaged the continent, especially Germany, where armies of unpaid mercenaries raided and pillaged cities, villages and farms.

May 20, 1648

May 20, 1648

in Tags

Present-day Poland and Ukraine. The death of Władysław IV sparked anarchy, including popular uprisings against the Polish magnates, nobles, and Jews. The estimated death toll in Ukraine was 18,000–20,000 out of a population of 40,000. Many communities were destroyed. In Nemirov, for example, in May 1648, the Cossacks massacred 6,000 people. Peace was achieved through the mediation of the Tatars on June 18, 1649.

1647

1647

in Tags

Giovan Battista Doni, the man who, in Italy, effectively changed the name of the note UT to the note DO (from DOni), dies; historical note: the Italian notation (do, re, mi, etc.) was born around the year 1000 with Guido d’Arezzo

1647

1647

in Tags

Cape of Good Hope, South Africa. The Dutch Neuw Haarlem ran aground near the cape, forcing its occupants to remain there for about a year. This was the first Dutch settlement in South Africa. Unlike Portuguese or English settlements, the Dutch ones were, at least initially, commercial rather than military in nature.

1647 – 1655

1647 – 1655

in Tags

The philosopher and Catholic priest Pierre Gassendi, in a series of philosophical works, defends atomism, defines its indivisibility and impenetrability, and also defines molecules.

17th century

17th century

in Tags

In commercial or military vessels, approximately one sailor is needed for every five tons of displacement. In the 14th century, it was one for every 10 tons in Venetian cogs, while in the 13th century, it was one for every 5 tons in lateen-rigged ships. In the 17th century, sailors began to increase again, mostly for defense against pirates.

1647

1647

in Tags

Johannes Hevelius publishes the first scientific book entirely dedicated to the Moon: Selenographia.

1647

1647

in Tags

Blaise Pascal suffered from stomach aches, difficulty swallowing and digesting, was frail and sickly, had severe headaches, sweating fits, and suffered from partial paralysis of his legs. Doctors prescribed bloodletting and purges. At 24, in 1647, he returned to live with his sister, and here a new series of doctors advised him to avoid prolonged mental exertion and take advantage of every opportunity for recreation. Pascal’s social life began, and his health also improved significantly.

1646

1646

in Tags

Blaise Pascal, at the age of 23, converted to Jansenism, a religious doctrine in contrast with Roman Catholicism, which was declared heretical by Pope Innocent X in 1653.

1646

1646

in Tags

Hannah, Isaac Newton’s mother, abandoned her son when he was just over three years old to marry Father Barnabas Smith, who died eight years later after having had three children with her; Isaac Newton would forever harbor feelings of hatred towards his stepfather and mother.

1645 – 1715

1645 – 1715

in Tags

Maunder Minimum (“Little Ice Age”): 1-2 degrees cooler on average worldwide due to decreased solar activity; but locally, temperatures went much further, with Greenland inaccessible for three centuries, glaciers advancing several kilometers, summers sometimes lacking altogether, and Iceland surrounded by ice.

1645 – 1669

1645 – 1669

in Tags

Cretan War. Venice wins most of the naval battles, but fails to prevent the Turks from conquering the island. Venetian forces are impressive: 60-70 galleys, 4 galleasses, and 36 galleons. During the 24 years of war, the Venetians are always on the offensive at sea, seeking battle even under severely inferior conditions and almost always achieving victory thanks to their seafaring prowess. The Venetians’ strenuous defense of Candia against the Turks arouses admiration throughout Europe.

April 1644

April 1644

in Tags

China. Beijing falls to the rebel leader Li Zicheng. The last Ming emperor, Chongzen, hangs himself shortly before the arrival of the Manchus. Since he had Jesuits at court, he had also sent a letter to the Pope asking him to send troops to protect China and expel the Manchus (but he had not fully understood the nature of papal power…). The consequences of the collapse of the Ming dynasty will be devastating for China: in little more than a generation, the population will drop by 40% due to conflicts and epidemics. The Qing dynasty begins.

1644

1644

in Tags

René Descartes, aka Descartes, publishes The Principles of Philosophy, which also incorporates much of the material from The World, which was never published during his lifetime.

1644

1644

in Tags

In Cogitata Physica-Mathematica the French monk Marin Mersenne makes a conjecture (Mersenne conjecture): the numbers 2^n – 1 are prime for n=2, 3, 5, 7, 13, 17, 19, 31, 67, 127, 257; it took more than 3 centuries to prove that these numbers were really prime; by the end of the 20th century the list of Mersenne primes had already expanded to the number 2^6972593-1 (2098960 digits).

1644

1644

in Tags

Battle of Maston Moore near York, England: Cromwell’s Roundheads defeat King Charles’s Royals

1643

1643

in Tags

China. Yang Schicong writes “Collective Writing from the Jade Hall,” a valuable account of court life in the final decade of the Ming Dynasty.

1643

1643

in Tags

China. A terrible epidemic sweeps across Northern China. This will favor the success of the Manchu invasion.

1643

1643

in Tags

The Pope declares that priests cannot smoke tobacco in church. Smoking tobacco is a habit that has spread rapidly among priests in recent decades, imported from the Americas by the Portuguese and Spanish. Only the Jesuits remain hostile to the new practice.

August 1642 – January 1649

August 1642 – January 1649

in Tags

England. The civil war pitted “knights” against “roundheads” (i.e., those without the heavy curls that were fashionable among the aristocracy). The nobility was almost entirely on the side of the King, while the merchant bourgeoisie, artisans, and small landowners sided with Parliament. Initially, Charles I’s army prevailed, but then came the decisive intervention of Oliver Cromwell, a Puritan country gentleman, willing to do anything to combat the idolatry he identified with the Catholic religion and the king. Cromwell’s Ironsides decisively defeated the royal army in 1648 at Preston. The monarchy was abolished and a republic established, and on January 3, 1649, King Charles I was executed after being condemned by a court in the name of the law established by Parliament. This was a revolutionary act, unique in Europe, which reverberated throughout all the continent’s monarchies. But then Oliver Cromwell’s role as “Protector” will increasingly take on the characteristics of a monarch, until the restoration of the Stuarts in the person of King Charles II in 1660. The new parliament will have a strong Anglican presence, and with measures against not only Catholics, but also Quakers and Presbyterians.

1642

1642

in Tags

Australia. In the first encounter between Aborigines and Europeans, the former were judged by the latter to be the simplest and most backward culture in the world. In reality, the Aborigines, divided into opposing tribes, were among the most advanced societies in the world by 38,000 BC. For several thousand years, they had already possessed vessels capable of navigating the high seas and reaching destinations beyond the horizon. They had various types of stone tools, composite weapons such as stone axes with wooden handles, and painted on rock faces. All this occurred 28,000 years before the end of the last glaciation (Wurz), when the rest of the planet would begin the same development. Several factors also played against the Aborigines, including the lack of large, domesticated animals (most likely exterminated by the Aborigines themselves), the lack of high-yielding crops for agriculture, and a limited territory with no easy East-West communication for exchange with other cultures.

1642 – 1652

1642 – 1652

in Tags

The English Civil War, the execution of Charles I, and the establishment of the only republic ever to exist on English soil, all had to do (also) with soap. At the time, very few homes had bathrooms, and even then, bathing was done about once a year, often by the whole family in the same tub and with the same water. But soap was used to wash clothes, wash hands, and perhaps even the face. What was frowned upon was bathing naked and washing the body. Soap was made from beef fat or tallow, which contains a whopping 48% oleic acid. Among animal fats, beef and human fat have the highest content of oleic acid, an unsaturated fat. When Charles I came to power in England, desperate for revenue and given the thriving soap industry, he asked Parliament to impose taxes on it. When they refused, he sold the monopoly rights to soap production. Soap manufacturers, exasperated by the loss of their livelihoods, supported Parliament. This admittedly somewhat far-fetched argument aside, it can certainly be said that soap has had the merit of reducing infant mortality in England in recent years. Soap works thanks to a hydrophilic head, soluble in water, and a hydrophobic tail, insoluble in water but which dissolves in substances such as grease, oil, and fat.

January 8, 1642

January 8, 1642

in Tags

Now blind, Galileo Galilei dies in Arcetri. Galileo dies in Florence, where he is under house arrest imposed by the Holy Office, in the villa Il Gioiello on the Arcetri hill south of Florence, a few steps from the convent where his daughter, Sister Maria Celeste, lives.

1641

1641

in Tags

Evangelista Torricelli, a student of Galileo Galilei, makes experimental observations on the existence of the vacuum, the existence of which had been denied since the time of Aristotle.

1640

1640

in Tags

Fermat wrote to the French monk Marin Mersenne that he had discovered that prime numbers, such as 5, 13, 17, and 29, which, when divided by 4, yield a remainder of 1, can always be written as the sum of two squares. This fact is true… and obviously Fermat forgot to write down the complete proof!

1640

1640

in Tags

India. The English obtain a trading concession in Madras. Then in 1674 they obtain another in what will become Bombay (and later Mumbay), then in 1690 in Fort William (Calcutta). It is a globalization ante litteram: high-quality Asian products flow into Europe in large quantities. English capitalism provides the legal certainty that also attracts investment from Indian traders, and a convergence of interests is forged, which will lead to the dissolution of the Mughal Empire.

November 19, 1639 – February 24, 1640

November 19, 1639 – February 24, 1640

in Tags

Manila. Trade with China, after several unsuccessful seasons of silver shipments from Acapulco, is stagnant. Hundreds of Chinese traders in the Manila ghetto set fire to the house of Luis Arias de Mora, the agricultural administrator and former Chinese Protector appointed by the Spanish. They drag him out of the house and kill him, then march on Manila. Thousands of other Chinese join the march. The Spanish governor, after a parley, opts to use force. The surviving Chinese are executed in groups of ten, followed by another revolt and massacre. In all, an estimated 1,300 Chinese lost their lives, with only 23 escaping the massacre, but thousands more are not among those captured. A Jesuit priest is hired to negotiate. On February 24, 1640, 8,000 combatants lay down their weapons.

1638

1638

in Tags

China. Emperor Yang outlaws the production and consumption of tobacco. For several decades, heavy tobacco consumption had become widespread in China, imported by the Portuguese and then grown by Chinese farmers, who earned ten times the profit from wheat, but jeopardized the emperor’s army’s bread supplies. He then decreed that anyone caught smoking tobacco would be beheaded. In 1642, the ban was lifted, and tobacco production and consumption returned to peak.

1638

1638

in Tags

Emigration from England to North America exceeded 100,000 people a year and remained at between 30,000 and 70,000 annually until the end of the 18th century. This deprived England of its most enterprising men and women, but it also fostered trade relations, offered enormous opportunities to those cultivating the land in North America, and drove up the cost of labor at home by raising wages.

1638

1638

in Tags

Galileo Galilei, convinced that the speed of light is finite, proposes a method to measure it by synchronizing the flashes of two lanterns on two very distant hills (obviously he fails, since the speed of light is finite, but much higher than he believed).

1638

1638

in Tags

In 1638, the Jews were segregated in the Modena ghetto by Duke Francesco I d’Este, and as early as 1617, the city’s conservators had formulated a similar request. The ghetto is bordered by the Via Emilia and the current Via Blasia, Via Coltellini, and Via Fonteraso; it includes the site of the current Piazza Mazzini, created by the demolition of part of the ghetto in 1904-1905. At the junction of the two internal streets with the Via Emilia, two gates close the ghetto from dusk until dawn, isolating it from the rest of the city.

1638

1638

in Tags

Manila. The gigantic Spanish galleon Nuestra Senora de la Conception sets sail for Japan, then heads for California. This is the standard return leg for galleons exporting silver to China. It is the largest galleon ever built, and has a declared cargo of 4 million pesos, plus at least as much undeclared cargo. Just outside the port of Manila, the young, inexperienced captain loses control of the crew, and the ship crashes off the Mariana Islands, scattering its cargo into the shallows of the coral reef. Even today, you can dive on it and find pieces of fine blue and white Chinese porcelain. The following year, the San Ambrosio sinks on the same leg in the Philippines, and the galleon sent in its place also sinks, this time off Japan. A coincidence of a lean season for silver mining in Potosí, South America, nearly brings the silver-for-porcelain trade to a halt.

1637

1637

in Tags

Fermat discovers the so-called Fermat’s Last Theorem but does not publish the proof (as was his habit)

1637

1637

in Tags

With the invention of the futures market (rights to unharvested harvests were sold), the price of tulips in the Netherlands multiplied 200-fold in a few months, and then collapsed dramatically. There were extreme cases, such as the one in which a poor farmer’s numerous children sold their father’s few tulips and each suddenly became millionaires, as well as (several) opposite cases.

1636

1636

in Tags

Fermat discovers the amicable numbers 17296 and 18416 (i.e., numbers for which the sum of the divisors of one equals the other and vice versa).

1636

1636

in Tags

Desargues’ Theorem: With 10 lines and 10 points where the lines intersect, if all but one of the points are the intersection of three lines, then the last point is also the intersection of three lines. (With 9 lines and 9 points, the theorem is Pappos’ and dates back to the 3rd century AD.)