Austrian and british economist (1899–1992).

Born May 8th, 1899 in Vienna. ^[ref]

Died March 23rd, 1992 at 92 years old in Freiburg im Breisgau. ^[ref]

John Maynard Keynes

Born June 5th, 1883 in Cambridge.

Died April 21st, 1946 at 62 years old

Milton Friedman

Born July 31st, 1912 in Brooklyn.

Died November 16th, 2006 at 94 years old

Martin Heidegger

Born September 26th, 1889 in Messkirch.

Died May 26th, 1976 at 86 years old

Karl Popper

Born July 28th, 1902 in Vienna.

Died September 17th, 1994 at 92 years old

Sigmund Freud

Born May 6th, 1856 in Příbor.

Died September 23rd, 1939 at 83 years old