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computer
Charles Babbage invented the computer in 1822 -
hot comb
Madome c.j Walker invented the hot comb in 1845 -
telephone
the telephone was invented in 1876 by Alexander Graham Bell -
hair products
hair products were invented in 1876-1919 by Madome c.j Walker -
traffic light
the traffic light was invented in 1913-1921 by Garret Morgan -
toilet
Sir John Harrington invented the toilet in 1596 -
telegragh
Claude Chappe invented the telegraph in 1794