751In which year did Christopher Columbus first reach the Americas?
752Which country was the first to establish a national health insurance system, introduced under Otto von Bismarck in 1883?
753Which is considered the first fully synthetic plastic, invented in 1907?
754Which country launched Venera 7, the first spacecraft to successfully transmit data after landing on Venus, in 1970?
755Which country launched Syncom 3, the world’s first geostationary communications satellite, in 1964?
756Which is considered the first fully synthetic fiber, developed in 1935?
757Who built one of the first commercially successful typewriters in the 1860s and 1870s?
758Which American college became the first coeducational institution of higher learning in the United States, admitting women from 1837?
759Who were the first people to reach the deepest known point of the ocean, the Challenger Deep, in 1960?
760Which country is credited with issuing the first paper banknotes in Europe, in 1661?
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