Business Facts
World's #1 Quick Reference Guide: Business Facts
BarCharts | 4 pages | PDF | 0,3 Mb
In this guide you can find hundreds of interesting facts like these:
1919: The pop-up toaster is invented by Charles Strite.
1920: Detroit police officer William Potts refines Garrett Morgan’s invention of the traffic light by adding the yellow warning signal due to the increase in automobile traffic.
1920: Earle Dickson invents the Band-Aid.
1921: John Larson invents the modern lie detector (polygraph) test.
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