Descartes, Rene (1596 – 1650)

Rene Descartes was a French mathematician and philosopher who is known as the Father of Modern Philisophy. In mathematics the Cartesian coordinate system is named for him. He also orignated the notation of superscripts representing powers or exponents.

Links to my other sites that connect Descartes to
Stamps
First Day Covers

Paper Money

Obverse	Reverse	Description
		France, 100 francs, 1942
		France, 100 francs FAKE - Notice the serial number is 00000

Coins and tokens

Obverse	Reverse	Description
		France, 100 Francs, 1991
		France, ECU, 1993