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The name of the person that invented the first calendar is not known. The first calendar was invented in Scotland.
a Chinese person
Michael
Sennacherib
james watt
John
Igor Sikorski invented the first practical flying helicopter.
This person invented the oboe so she probrably was the first person to play it. Her name was Jean Hotteterre.
mary gunter
18
The name of the first person to build a bridge is not recorded by history.
the person name that invented scramble game