Pfizer´s history

Main

january 1, 1849

January 1, 1850

January 1, 1880

Dec 27, 1891

january 1, 1900

Oct 19, 1906

January 1, 1936

January 1, 1941 - January 1, 1944

January 1, 1950

January 1, 1952

January 1, 1953

January 1, 1955

January 1, 1960

January 1, 1961

January 1, 1967

January 1, 1971

january 1, 1972

january 1, 1988

January 1, 1990

January 1, 1992

January 1, 1992

January 1, 1992

January 1, 1995

January 1, 1998

January 1, 2000

April 16, 2003

January 1, 2005

October 15,2009