"The U.S. Supreme Court looms large in the history of abortion in the United States, but state capitols from the 1800s to now have been the crucibles of America's evolving laws on a woman's right to end a pregnancy. The initial trendsetter was Massachusetts, which in the mid-1800s became the first state to outlaw abortion, an accepted practice in colonial times. Last year, South Dakota attempted to change history with a strict new ban on abortion geared to challenge the high court's 1973 Roe v. Wade ruling, which established constitutional protections for women seeking an abortion. While the makeup of the Supreme Court is the focus of much of today's political calculations about the future of abortion in America, the role of states would become pivotal if the landmark decision were overturned. Any substantial weakening of Roe v. Wade would trigger an epic battle between "pro-life" and "pro-choice" forces that would be fought in state capitols - and perhaps also in Congress."