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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 ...
Pages in category "20th-century inventions" The following 128 pages are in this category, out of 128 total. This list may not reflect recent changes. A.
2 Pre-20th century. 3 20th century. 4 21st century. ... 1999 – Discovery of ... 2010-Over the past two decades, a considerable focus has been directed toward ...
10th century – sea-going junk ships built in China. Late 10th century – Kamal invented in Arab world. 1044 – Compass invented in China. 13th century (or before) – Rocket missiles used in China. Rocket powered passenger vehicles did not appear until 1939. 1350 – Compass dial invented by Ibn al-Shatir. 1479–1519 – Da Vinci sketches ...
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.
The modern-day provisions of the law applied to inventions are laid out in Title 35 of the United States Code (Ch. 950, sec. 1, 66 Stat. 792). From 1836 to 2011, the United States Patent and Trademark Office (USPTO) has granted a total of 7,861,317 patents [7] relating to several well-known inventions appearing throughout the timeline below.
4th century BC: The first true formal system is constructed by Pāṇini in his Sanskrit grammar. [34] [35] 4th century BC: Eudoxus of Cnidus states the Archimedean property. [36] 4th century BC: Thaetetus shows that square roots are either integer or irrational. 4th century BC: Thaetetus enumerates the Platonic solids, an early work in graph ...
Canadian Eskimo Dog – is a working breed of dog native to the Arctic Canadienne cattle – the only breed of dairy cattle developed in Canada Cymric cat – The Cymric is a muscular, compact, medium-to-large cat that weighs between 3.2 to 5.9 kg (7 to 13 lb), and Canada claims to have developed the long-haired variant