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feb 22, 1622 - william Oughtred invented the next calculator

Description:

William Oughtred invented the circular slide rule, and in 1633 described the rectilinear version.

Added to timeline:

29 Sep 2017
0
0
91
calculator stuff
leeet

;-;

Date:

feb 22, 1622
Now
~ 396 years ago

Images:

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