Abortion is a medical procedure resulting in the termination of a human pregnancy and death of a fetus. Abortion was banned in 30 states until the 1973 Supreme Court decision Roe v. Wade. The ruling made abortion legal in all 50 states but gave them regulatory powers over when abortions could be performed during a pregnancy. Currently, all states must allow abortions early in pregnancies but may ban them in later trimesters.
Source: isidewith.com