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18 hours ago · Early life Childhood and education Oppenheimer was born Julius Robert Oppenheimer into a non-observant Jewish family in New York City on April 22, 1904, to Ella (née Friedman), a painter, and Julius Seligmann Oppenheimer, a successful textile importer. Robert had a younger brother, Frank, who also became a physicist. Their father was born in Hanau, when it was still part of the Hesse-Nassau ...
18 hours ago · The Weimar Republic, [d] officially known as the German Reich, [e] was a historical period of Germany from 9 November 1918 to 23 March 1933, during which it was a constitutional federal republic for the first time in history; hence it is also referred to, and unofficially proclaimed itself, as the German Republic.
18 hours ago · The timeline of historic inventions is a chronological list of particularly important or significant technological inventions and their inventors, where known. [a] History of technology By technological eras Premodern Prehistoric Stone Age (lithic) Neolithic Revolution Copper Age Bronze Age Iron Age Ancient Modern Proto-industrialization First Industrial Revolution Standardization Second ...
