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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 ...
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.
Pages in category "20th-century inventions" The following 127 pages are in this category, out of 127 total. This list may not reflect recent changes. A.
Electrification spread rapidly in the 20th century. At the beginning of the century electric power was for the most part only available to wealthy people in a few major cities. By 2019, an estimated 87 percent of the world's population had access to electricity. [98] Birth control also became widespread during the 20th century.
Early 19th century: The Irish flute is not an instrument indigenous to Ireland; a key figure in its development was English inventor and flautist Charles Nicholson (1775–1810). 1829: The concertina invented by Charles Wheatstone (1802–1875). [31] Early 20th century: The theatre organ developed by Robert Hope-Jones (1859–1914).
The celebration of the 20th century’s ending expressed the popular opinion that New Year's Eve 1999 and New Year's Day 2000 marked the turn of the millennium, while strictly speaking the 20th century ended on New Year's Eve 2000 and the 21st century began on New Year's Day 2001.
2000 Fill and seal a time capsule with 20th-century inventions; 1999 Set a golf tee and tee up a golf ball; 1998 Shut off an alarm clock; 1997 Insert and then play a CD; 1996 Put coins in a bank; 1995 Turn on a radio; 1994 Make a cup of coffee; 1993 Screw a light bulb into a socket; 1992 Unlock a lock; 1991 Toast a slice of bread; 1990 Put the ...
Pages in category "20th-century inventors" The following 30 pages are in this category, out of 30 total. This list may not reflect recent changes. A. Manuel de Abreu;