20th and 21st Century Technological Inventions
Miyerkules, Hunyo 17, 2015
The Gregorian calendar, 1582
Debugged the Julian calendar, jumping ahead 10 days to synchronize the world with the seasons
-Colben Solomon
http://www.theatlantic.com/magazine/archive/2013/11/innovations-list/309536/#sthash.H3HjsaJ4.dpuf
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