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Russian Revolution
The Russian Revolution is the collective term for a series of revolutions in Russia in 1917, which dismantled the Tsarist autocracy and led to the creation of the Russian SFSR. The Emperor was forced to abdicate and the old regime was replaced by a provisional government during the first revolution of February 1917 (March in the Gregorian calendar; the older Julian calendar was in use in Russia at the time). In the second revolution, during October, the Provisional Government was removed and rep -
Buzz Aldrin
Buzz Aldrin (born Edwin Eugene Aldrin, Jr., January 20, 1930) is an engineer and former American astronaut, and the second person to walk on the Moon. He was the lunar module pilot on Apollo 11, the first manned lunar landing in history. He set foot on the Moon at 03:15:16 (UTC) on July 21, 1969, following mission commander Neil Armstrong. He is also a retired colonel in the United States Air Force (USAF) and a USAF Command Pilot / Astronaut. -
Yuri Gagarin
Yuri Alekseyevich Gagarin 9 March 1934 – 27 March 1968) was a Soviet pilot and cosmonaut. He was the first human to journey into outer space, when his Vostok spacecraft completed an orbit of the Earth on 12 April 1961. -
Iron Curtain
The Iron Curtain symbolized the ideological conflict and physical boundary dividing Europe into two separate areas from the end of World War II in 1945 until the end of the Cold War in 1991. The term symbolized efforts by the Soviet Union to block itself and its satellite states from open contact with the west and non-Soviet-controlled areas. On the east side of the Iron Curtain were the countries that were connected to or influenced by the Soviet Union. On either side of the Iron Curtain, state -
A-bomb
A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission or a combination of fission and fusion. Both reactions release vast quantities of energy from relatively small amounts of matter. The first fission ("atomic") bomb test released the same amount of energy as approximately 20,000 tons of TNT. The first thermonuclear ("hydrogen") bomb test released the same amount of energy as approximately 10,000,000 tons of TNT. -
Berlin airlift
The day after the 18 June 1948 announcement of the new Deutsche Mark, Soviet guards halted all passenger trains and traffic on the autobahn to Berlin, delayed Western and German freight shipments and required that all water transport secure special Soviet permission. On 21 June, the day the Deutsche Mark was introduced, the Soviets halted a United States military supply train to Berlin and sent it back to western Germany.On 22 June, the Soviets announced that they would introduce a new -
NATO
The North Atlantic Treaty Organization (NATO; /ˈneɪtoʊ/; French: Organisation du traité de l'Atlantique Nord (OTAN)), also called the (North) Atlantic Alliance, is an intergovernmental military alliance based on the North Atlantic Treaty which was signed on 4 April 1949. The organization constitutes a system of collective defence whereby its member states agree to mutual defense in response to an attack by any external party. NATO's headquarters are in Brussels, Belgium, one of the 28 member sta -
Korean war
The Korean War (25 June 1950 – 27 July 1953)was a war between the Republic of Korea (South Korea), supported by the United Nations, and the Democratic People's Republic of Korea (North Korea), at one time supported by China and the Soviet Union. It was primarily the result of the political division of Korea by an agreement of the victorious Allies at the conclusion of the Pacific War at the end of World War II. The Korean Peninsula was ruled by the Empire of Japan from 1910. -
Sputnik I
The history of the Sputnik 1 project dates back to 17 December 1954, when Sergei Korolev addressed Dimitri Ustinov, the Minister of Defence Industries, proposing the development of an Earth-orbiting (artificial) satellite, forwarding a report by Mikhail Tikhonravov with an overview of similar projects abroad.Tikhonravov emphasized that an artificial satellite is an inevitable stage in the development of rocket equipment in 1951,after which "interplanetary communication -
Warsaw Pact
The Warsaw Pact (formally, the Treaty of Friendship, Co-operation, and Mutual Assistance, sometimes, informally WarPac, akin in format to NATO) was a collective defense treaty among eight communist states of Central and Eastern Europe in existence during the Cold War. The founding treaty was established under the initiative of the Soviet Union and signed on 14 May 1955, in Warsaw. -
Vietnam War
The Vietnam War (Vietnamese: Chiến tranh Việt Nam), also known as the Second Indochina War, was a Cold War-era proxy war that occurred in Vietnam, Laos, and Cambodia from December 1956 to the fall of Saigon on 30 April 1975. This war followed the First Indochina War and was fought between North Vietnam supported by the Soviet Union, China and other communist allies and the government of South Vietnam supported by the United States and other anti-communist allies. -
Berlin war (built)
The Berlin Wall (German: Berliner Mauer) was a barrier constructed by the German Democratic Republic (GDR, East Germany) starting on 13 August 1961, that completely cut off (by land) West Berlin from surrounding East Germany and from East Berlin. The barrier included guard towers placed along large concrete walls, which circumscribed a wide area (later known as the "death strip") that contained anti-vehicle trenches, "fakir beds" and other defenses. The Eastern Bloc claimed that the wall w -
Berlin War (fall)
After several weeks of civil unrest, the East German government announced on 9 November 1989 that all GDR citizens could visit West Germany and West Berlin. Crowds of East Germans crossed and climbed onto the wall, joined by West Germans on the other side in a celebratory atmosphere. Over the next few weeks, a euphoric public and souvenir hunters chipped away parts of the wall; the governments later used industrial equipment to remove most of the rest. The physical Wall itself was primarily des -
Nuclear Non-Proliferation Treaty
Opened for signature in 1968, the Treaty entered into force in 1970. On 11 May 1995, the Treaty was extended indefinitely. More countries have adhered to the NPT than any other arms limitation and disarmament agreement, a testament to the Treaty's significance. A total of 190 states have joined the Treaty, though North Korea, which acceded to the NPT in 1985 but never came into compliance, announced its withdrawal in 2003. Four UN member states have never joined the NPT: India, Israel, Pak
