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Hace 2 días · 1st century AD: The aeolipile, a simple steam turbine is recorded by Hero of Alexandria. [263] 1st century AD: The first use of respiratory protective equipment is documented by Pliny the Elder ( c. 23 AD –79) using animal bladder skins to protect workers in Roman mines from red lead oxide dust.
17 de may. de 2024 · Andrey Sakharov (born May 21, 1921, Moscow, Russia—died December 14, 1989, Moscow) was a Soviet nuclear theoretical physicist, an outspoken advocate of human rights, civil liberties, and reform in the Soviet Union as well as rapprochement with noncommunist nations.
Hace 3 días · Erast Gliner. Andrei Dmitrievich Sakharov ( Russian: Андрей Дмитриевич Сахаров; 21 May 1921 – 14 December 1989) was a Soviet physicist and a Nobel Peace Prize laureate, which he was awarded in 1975 for emphasizing human rights around the world.
Hace 1 día · The Great Depression (1929–1939) was a severe global economic downturn that affected many countries across the world. It became evident after a sharp decline in stock prices in the United States, leading to a period of economic depression. [1] .
8 de may. de 2024 · Holodomor, man-made famine that claimed millions of lives in the Soviet republic of Ukraine in 1932–33. Because the famine was so damaging, and because it was covered up by Soviet authorities, it has played a large role in Ukrainian public memory, particularly since Ukraine gained independence in 1991.
Hace 5 días · May 31, 1921 - June 1, 1921 (Anniversary in 3 days) Location: Oklahoma. Tulsa. United States. The Tulsa race massacre of 1921 was one of the most severe incidents of racial violence in U.S. history. It occurred in Tulsa, Oklahoma, beginning on May 31, 1921, and lasting for two days.
9 de may. de 2024 · A third-person, journalistic detective game taking place during a moment of revolution and change in Mexico’s real history, this demo is made up of two different chapters from the final game: The...
