• 100 Francs 1991, KM# 996, France, 395th Anniversary of Birth of René Descartes
  • 100 Francs 1991, KM# 996, France, 395th Anniversary of Birth of René Descartes
Description

René Descartes (1596–1650) was a French philosopher, mathematician, and scientist. Dubbed the father of modern western philosophy, much of subsequent Western philosophy is a response to his writings, which are studied closely to this day.

Descartes's Meditations on First Philosophy continues to be a standard text at most university philosophy departments. Descartes's influence in mathematics is equally apparent; the Cartesian coordinate system—allowing reference to a point in space as a set of numbers, and allowing algebraic equations to be expressed as geometric shapes in a two- or three-dimensional coordinate system (and conversely, shapes to be described as equations)—was named after him. He is credited as the father of analytical geometry, the bridge between algebra and geometry, used in the discovery of infinitesimal calculus and analysis. Descartes was also one of the key figures in the scientific revolution.

Engraver: Andreas Gal

Obverse

Depicts René Descartes head 3/4 facing, date below. The national motto of France (Liberty, Equality, Fraternity) above.

LIBERTE EGALITE FRATERNITE
DESCARTES
1991

Reverse

Finger-pointing on starred (representing Flag of Europe) paper, denomination below.

The Flag of Europe or European Flag is an official symbol used by two separate organisations, the Council of Europe (CoE) as a symbol representing Europe, and the European Union (EU). It consists of a circle of twelve five-pointed stars on a blue field.

Mint mark: Cornucopia, horn of plenty (Paris Mint - Paris until 1972 or Pessac from 1973)

Privy mark of the Mint's Chief Engraver: Dolphin - Emile Rousseau (1975-1993)

REPUBLIQUE FRANÇAISE
100 F
A. GAL

Edge
Characteristics
Type Commemorative Issue (Non-circulating)
Material Silver
Fineness 0.900
Weight 15 g
Diameter 31 mm
Thickness 2.3 mm
Shape round
Alignment Coin
Mint
Paris Mint (A)

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