1889 Igor Sikorsky
Inventors
1889 Thomas Midgley Jr
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Fred Koch
InventorsPeople involved in politics and government in the United StatesPeople involved in the John Birch Society
James Watt
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Lewis Winkler
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Thomas Edison
Inventors
Wintergatan - Marble Machine (music instrument using 2000 marbles)https://www.youtube.com/watch?v=IvUU8joBb1Q
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Inventors
Pre-historic, historic and present-day people