Kohei Saito

Japanese philosopher, marxist (1987-).

Born January 31st, 1987 (age 39 years) in Tokyo.

Jack Trout

American marketing man (1935-2017).

Born January 31st, 1935 in Manhattan.

Died June 4th, 2017 at 82 years old in Greenwich (colorectal cancer).

Buddy Rice

American racing driver.

Born January 31st, 1976 (age 50 years) in Phoenix.

Qin Kai

Chinese diver.

Born January 31st, 1986 (age 40 years) in Xi'an.

J. J. Sakurai

American physicist (1933-1982).

Born January 31st, 1933 in Tokyo.

Died November 1st, 1982 at 49 years old in Geneva.

Nina Sublati

Georgian singer.

Born January 31st, 1995 (age 31 years) in Moscow.

Julian Steward

American anthropologist (1902–1972).

Born January 31st, 1902 in Washington, D.C..

Died February 6th, 1972 at 70 years old in Urbana.

Victor Crone

Swedish singer (born 1992).

Born January 31st, 1992 (age 34 years) in Österhaninge church parish. ^[ref]

Yazan Abu Arab

Association football player.

Born January 31st, 1996 (age 30 years) in Amman.

Marco Trungelliti

Argentine tennis player.

Born January 31st, 1990 (age 36 years) in Santiago del Estero.