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