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Abortion opponents march down Pennsylvania Avenue in Washington Monday Jan. 22, 1996 toward the Supreme Court to protest the court's 1973 decision to legalize abortion. (AP Photo/Wilfredo Lee)

Roe v. Wade

Prayers, marches and protests kicked off in Washington on Jan. 22 to mark the 40th anniversary of the Supreme Court decision that legalized abortion, even as battles over the issue have largely shifted from the federal courts to statehouses.