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en.wikipedia.org/wiki/Timeline_of_historic_inventions

The timeline of historic inventions is a chronological list of particularly important or significant ... 5.10 20th century. 5.10.1 1900s .... 5th–4th century BC: Traction trebuchet in Ancient China; appeared in the Mediterranean by the 6th century AD .

www.thoughtco.com/20th-century-timeline-1992486

Feb 14, 2017 ... Technology, science, and inventions have progressed at an accelerated rate during the hundred years of the 20th century, more so than any ...

www.ideafinder.com/history/timeline/the1900s.htm

20th Century Innovation Timeline. 1900 00 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 . YEAR, INVENTION, INVENTOR. 1900, Dirigible Hershey Bar Radio, Wireless ...

www.historylearningsite.co.uk/inventions-and-discoveries-of-the-twentieth-century/inventions-1900-to-1990

Trueman · Contact · Home » Inventions and Discoveries of the Twentieth Century » Inventions 1900 to 1990 ... Inventions 1900 to 1990. 1901 : vacuum cleaner.

www.zoomschool.com/inventors/1900a.shtml

Drew's first tape invention was a masking tape made for painters in 1923 (this tape was designed to help painters paint a straight border between two colors).

www.toptenz.net/top-10-inventions-of-the-20th-century.php

Sep 9, 2010 ... And so, without further ado and in no particular order, here are my nominees for the ten greatest inventions/discoveries of the twentieth century: ...

www.toplst.com/the-10-top-inventions-of-the-20th-and-21st-centuries

In order to understand the changes occurred in the first part of the 21st century, it is important also to highlight the top ten inventions of the 20th century (again it ...

www.ask.com/youtube?q=Twentieth+Century+Inventions&v=7nDz9O3f6OI
Oct 23, 2015 ... Top 10 Obscure Inventions That Killed Their Inventors http://bit.ly/1Muk7gw There can be no doubt that the twentieth century is one of the most ...

www.inventionware.com/20th-century-inventions

One of the inventions of the twentieth century was the radio. It was one of the major inventions of that era. The brain behind this 20th century invention was ...

www.britannica.com/technology/history-of-technology/The-20th-century

This is not to say that the springs of innovation went dry in Europe. Many important inventions of the 20th century originated there. But it was the United States ...