1647 1652 1663 1724 1821 1830 1840 1850 1871 1876 1886 1900 1906 1916 1925 1936 1937 1942 1962 1965 1970 1973 1975 1976
1980 1988 1990
1992 1993 1994
1995 1997 1998 2000

Sources: Abortion Rites: A Social History of Abortion in America by Marvin Olasky (Crossway Books, 1992); The Press and Abortion, 1838-1988 by Marvin Olasky (Lawrence Erlbaum Associates, 1988); news accounts of the 1990s