In the United States, abortion laws began to appear in the 1820s, forbidding abortion after the fourth month of pregnancy.
most abortions in the US had been outlawed by 1900.
I didn't know this
By 1965, all fifty states banned abortion, with some exceptions which varied by state: to save the life of the mother, in cases of rape or incest, or if the fetus was deformed.
The Supreme Court in 1973, in the case of Roe v. Wade, declared most existing state abortion laws unconstitutional.