mid-20th century
China enters and emerges from the period of chaos that began a century earlier. Mao plunges China back into its previous isolationism, stability, and poverty. To do so, he seeks an uprising in the prosperous coastal cities. Failing this, he undertakes the Long March inland
September 9, 1949
An American B29 takes air samples over the Pacific Ocean with special filters and reveals the first Soviet nuclear explosion; Joe-1, as the test is named by the Americans, is an accurate copy of the American plutonium bomb, or Fat Man, dropped on Nagasaki.
September 1949
Enrico Fermi returns to Europe for the first time, more than a decade after leaving before the war. He travels to Basel for a conference on high-energy particle physics. He meets Heisenberg, Pauli, and Lise Meitner, and swims a couple of kilometers in the Rhine
April 11 – 14, 1949
Oldstone-On-The-Hudson, Peekskill, New York. Richard Feynman presents his computational methods and approach to QED.
October 29, 1948
Signal Intelligence. The USSR implements a massive change in its methods of encryption and encoding messages. It also favors land-based wired communications, which are more difficult to intercept than the Nazis’ radio communications.
June 24, 1948 – May 12, 1949
Siege of West Berlin by the Red Army: the Allies (General Lucius Clay) respond with a gigantic airlift: 1 plane every 90 seconds for 2 years, day and night (cargo capacity was limited)
June 20, 1948
Federal Republic of Germany (West Germany). The Bank Deutscher Länder was founded in March 1948 as the predecessor of the Deutsche Bundesbank (Buchheim 1998). New Deutsche Mark (DM) banknotes were printed in the United States. On June 20, 1948, the population received 40 DM per
April 3, 1948
President Truman launches the Marshall Plan. US President Harry S. Truman signs the Foreign Assistance Act, the program better known as the Marshall Plan, named after US Secretary of State George C. Marshall, which channeled more than $13 billion in economic aid to Europe between
January 23, 1948
month after discovering the transistor effect, Shockley woke up one night with an idea: a simpler junction, made like a sandwich, with the top and bottom layers of germanium doped with impurities with excess electrons (n), and a thin middle layer of germanium with excess
November 1947
Bell Labs, NY: Miracle Month of the Transistor. John Bardeen develops the theory of the photovoltaic effect, Walter H. Brattain finds ingenious ways to test it, and through various experiments they arrive at the conception of the first transistor. They used Brattain’s lab to do
Autumn 1947
Facility 905 was built in Kazakhstan, near Semipalatinsk: there were 4 areas where, between 1949 and 1991, 456 atmospheric nuclear detonations and 318 underground ones were conducted.
June 5, 1947
U.S. Secretary of State George Catlett Marshall proposes a gigantic aid plan for Western Europe. It involves approximately $100 billion in current currency for Western Europe. This lays the foundation for democratic Europe, the defeat of real socialism, and the American century.
May 10, 1947
Glasgow, Scotland. The united British team took on the “rest of the world” and easily won 6-1. England manager Walter Winterbottom selected the British team, which included five English players, three from Scotland, two from Wales, and one from Northern Ireland. The European team, chosen
May 4, 1947
Romania. 600 members of opposition parties are arrested on trumped-up charges. Another 315 had been arrested a few days earlier.
April 1947
The assembly of the Mark-3 plutonium bomb dropped on Nagasaki was considered dangerous, and orders were given to never assemble a Mark-3 on American soil. In the event of conflict, they would be assembled at intermediate support bases such as Thule, in northwest Greenland. The
April 1947
The number of America’s atomic weapons is considered such classified information that very few people know about it, and the number cannot be written down in any document. David Lilienthal, recently appointed head of the Atomic Energy Commission, returns from his first visit to Los
March 28, 1947
Poland. Polish Deputy Minister of Defense, General Karol Świerczewski, is assassinated by far-right Ukrainian partisans. The crime will be used as a pretext for a harsh crackdown on the Ukrainian minority in Poland, called Akcja Wisla (Operation Vistula) and nicknamed the Final Solution to the
March 20, 1947
Romania. 315 members of opposition parties are arrested on trumped-up charges. On May 4th, another 600 will be arrested. On June 2nd, another 260 people who opposed the Communist Party are arrested. All are deported to the Soviet Union.
March 12, 1947
Truman requests and obtains from Congress an extraordinary allocation of 400 million dollars in military and economic aid to Greece and Turkey, the initial act of the Doctrine of Containment of the Soviet Union launched by the American president
February 21, 1947
Washington, D.C. The U.S. State Department receives an urgent phone call from the First Secretary of the British Embassy, and just half an hour later, two documents of historic significance are delivered: the formal notification that the British government would terminate its commitment in the
February 20, 1947
The United States launches a V-2 rocket from New Mexico to an altitude of 110 km, carrying a swarm of fruit flies. After three minutes in space (suborbital flight), the Blossom capsule returns and the flies are recovered safe and sound. The first living beings
February 1947
Around 10,000 people were killed by Tito’s communist partisans, thrown into the Foibe, the karst-formed sinkholes typical of the Trieste and Istria area.
1947
After the Paris Peace Treaty with the minor Axis powers (Italy, Finland, Romania, Hungary, and Bulgaria), the issue of Germany and Japan remained unresolved. US Treasury Secretary Henri Morgenthau Jr. called for the “pastoralization” of Germany with the complete dismantling of its industrial and military
December 19, 1946
Ho Chi Minh attacks the French. Thirty thousand Viet Minh soldiers under the command of Ho Chi Minh attack French positions in Hanoi, Vietnam, marking the beginning of thirty years of war in Indochina. Ho Chi Minh had first traveled to France at the end
July 22, 1946
Shortly after noon on July 22, 1946, Zionist terrorists, led by Menachem Begin, set off bombs planted in the basement of the King David Hotel in Jerusalem. At 12:37, a massive explosion ripped through the building, killing 91 people. Among the dead were 25 Britons,
April 4, 1946
Iran-Soviet Treaty for the complete withdrawal of the Red Army from Iranian soil. On August 25, 1943, a bilateral invasion had begun by British forces in the southwest and Soviet forces in the north. There were only isolated pockets of resistance. On August 29 and
March 15, 1946
Romania. Former Prime Minister Radescu is savagely beaten by a group of men armed with clubs. He realizes it’s best to leave his country.
March 5, 1946
Fulton, Missouri. Winston Churchill, in a famous speech, declared: “From Stettin in the Baltic to Trieste in the Adriatic, an iron curtain has descended across the continent. Behind that line lies all the capitals of ancient states of Central and Eastern Europe (…) in what
March 1946
Eckert and Mauchly, rivals and computer pioneers, jointly founded the Eckert Mauchly Computer Corporation, which would soon become Remington Rand, then Sperry Rand, and finally UNISYS. Among other things, they would also build the UNIVAC, which would predict with 100:1 certainty the election of Eisenhower
November 1945
The series production of the fearsome Grumman F6F HellCat ends; in the short three years of its production, 12,272 units were produced; providing a fundamental contribution to the conflict: out of 6,477 Japanese aircraft shot down in flight in dogfights, more than 5,000 were shot
October 15, 1945
The British test one of their captured V-2s at Cuxhaven. Witnessing the test, from afar and disguised as a British captain, is Soviet designer Sergei Korolyov.
September 1945
As part of the US Congressional inquiry into the Japanese attack on Pearl Harbor, much classified and secret military material was made public, including the interceptions and decryption of Japanese messages encrypted with JN-25. The British side of the story, namely the work done at
Summer 1945
From the distance of the 21st century, we tend to see the end of the war as a time of celebration and rejoicing. Europe and parts of the world are, in reality, places of mourning, destruction, and vengeance, and it will take months, in some
September 1945
Indonesia. Despite the country’s declaration of independence two weeks earlier, Australian, British, and then Dutch troops arrive to take control of the country from the Japanese.
June 2, 1945
In Nonantola, in the province of Modena, engineer Antonio Rizzi and his son Ettore, a partisan of the Italian Brigade and later a representative of the DC, were assassinated by partisans.
June 1945
Prague. The Prague Local National Committee headquarters posts posters around the city with several directives: 1) the term “German” will henceforth be written in lowercase letters, in a derogatory sense. 2) (…) Germans will be given swastikas on their arms (…) they will not be
July 1, 1945
Despite Churchill’s recommendations to Truman, the Anglo-American troops withdraw from the occupied areas of East Germany and abandon the banks of the Elbe; the withdrawal reaches, in some places, 250 km along a 650 km front and allows the Soviets to establish themselves in the
May 31, 1945
After the Liberation of Milan, thousands of fascists or suspected fascists were killed. Palmiro Togliatti suggested 5,000 to the Soviet ambassador. Carlo Simiani claims 3,400 from April 25 to May 31. Research by Livio Valentini documents 1,856 fascist casualties throughout the civil war, of which
May 28, 1945
Germany. The US 3rd Division, stationed in Nordhausen, moves 14 tons of V-2 documents, right under the noses of the British, who are arriving to take over their sector.
May 28, 1945
As per the Yalta Agreement, Britain handed over to the Soviets the 45,000-man Cossack corps that had arrived from Yugoslavia. These soldiers and officers were disarmed and then deceived into handing them over to the Soviets, where they were subsequently sent to the Gulags.
May 26, 1945
Heinrich Himmler’s body is buried by some English soldiers somewhere in a forest near Lüneburg
May 1945
Manchuria. Japanese Unit 731 conducted thousands of experiments on prisoners and experimented with biological (anthrax, plague, and cholera) and chemical weapons. Estimates of Chinese casualties range between 380,000 and 560,000. In May 1945, eight American airmen were also vivisected, without anesthesia. After the end of
1945 – 1946
Nearly 7 million Germans were expelled from western Poland, partly as a result of the country’s eastward shift in recompense to the USSR, as agreed at Yalta. Another 3 million were expelled from Czechoslovakia and more than 1.8 million from other countries, for a total
late 1945
Yugoslavia. In an interview with a British magazine published in 1979, Tito’s right-hand man, Milovan Gilas, outlined the methods used to resolve the problem of collaborationism in the immediate post-war period. Tito essentially recognized the limitations of his country, particularly its judicial system, and decided
May 12, 1945
Winston Churchill, speaking of the countries of Eastern Europe, declared that “an iron curtain is drawn down upon their front.” The Cold War had begun.
May 8, 1945
Half a kilo of radioactive material (radium) was the subject of a dispute between partisans and the German army in the final months of the war in Italy: it was transported on a bicycle and buried for many months under the floor of a cellar.
May 7, 1945
Manhattan Project: A commission was established to consider the possible use of the bomb. The commission included four physicists: Compton, Lawrence, Fermi, and Oppenheimer (in favor).



