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The Lower Paleolithic period lasted over 3 million years, during which there many human-like species evolved including toward the end of this period, Homo sapiens.The original divergence between humans and chimpanzees occurred 13 (), however interbreeding continued until as recently as 4 Ma, with the first species clearly belonging to the human (and not chimpanzee) lineage being ...
The following articles cover the timeline of United States inventions: Timeline of United States inventions (before 1890), before the turn of the century; Timeline of United States inventions (1890–1945), before World War II; Timeline of United States inventions (1946–1991), during the Cold War
It is sometimes credited as the first semiconductor in history. The envelope detector is an important part of every radio receiver. 1907: Rosenthal puts in his image telegraph for the first time a photocell. 1911: First film studios are created in Hollywood and Potsdam- Babelsberg .
From the first Apple computer to the COVID-19 vaccine, here are the most revolutionary inventions that were born in the U.S.A. in the past half-century.
Around 7 years later, Ford would make the Model A, paving the way for his continued success. Alexander Graham Bell's flying machines were huge, tetrahedral kites. Public Domain
These timelines of world history detail recorded events since the creation of writing roughly 5000 years ago to the present day. For events from c. 3200 BC – c. 500 see: Timeline of ancient history; For events from c. 500 – c. 1499, see: Timeline of post-classical history; For events from c. 1500, see: Timelines of modern history
Human Accomplishment: The Pursuit of Excellence in the Arts and Sciences, 800 B.C. to 1950 is a 2003 book by the political scientist Charles Murray.Surveying outstanding contributions to the Arts and Sciences from ancient times to the mid-twentieth century.
[5] The Patent Act of 1836 (Ch. 357, 5 Stat. 117) further clarified United States patent law to the extent of establishing a patent office where patent applications are filed, processed, and granted, contingent upon the language and scope of the claimant's invention, for a patent term of 14 years with an extension of up to an additional 7 years ...