When Was It Invented?

Enter what year the item was invented

Just the year; not the month or exact date

Numerical form only

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Last updated: May 31, 2016

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First submitted	May 31, 2016
Times taken	15
Average score	20.0%
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Item	What Year It Was Invented
Cell Phone	1973
Microwave	1946
Toothbrush	1938
Lightbulb	1879
Traffic Light	1912
Telescope	1608
Television	1927
Gasoline- Powered Automobile	1886
Doorknobs	1878
Cotton Gin	1793
Typewriter	1714
Air Conditioner	1902
Sewing Machine	1846
Pencil	1564
Rubik's Cube	1974