A woman carries her daughter as she pickets outside the New Jersey State House in Trenton, on May 8, 1969. A group of other mothers and children were on hand to demonstrate in favor of a liberalized abortion law.
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A young woman holds a sign demanding a woman's right to abortion at a demonstration to protest the closing of a Madison abortion clinic in Wisconsin on April 20, 1971. The Midwest Medical Center was closed after authorities said more than 900 abortions had been performed at the facility in violation of the state's abortion laws.
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An estimated 5,000 people march around the Minnesota Capitol building, protesting the U.S. Supreme Court's Roe v. Wade decision, ruling against state laws that criminalize abortion on Jan. 22, 1973, when the Supreme Court legalized abortion with a 7-2 vote.
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Opponents of abortion laws listen to a speaker at a rally outside the Wisconsin State Capitol in Madison, Wis., on April 25, 1973, before a hearing on several abortion bills by the assembly judiciary committee.
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Nellie Gray, president of March for Life, and Sen. Jesse Helms, co-sponsor of the proposed "Human life" constitutional amendment, discuss their attempt to rally support for the amendment at a news conference on Jan. 22, 1980.
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Several thousand marchers protesting the 8-year-old Supreme Court decision permitting abortions storm toward the U.S. Capitol building on Jan. 22, 1981.
Herbert K. White/AP
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Norma McCorvey, left, who was Jane Roe in the 1973 Roe vs. Wade Supreme Court case, walks with her attorney, Gloria Allred, outside the Supreme Court in April 1989.
J. Scott Applewhite/AP
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March For Life protests abortion in front of the White House in Washington on Jan. 23, 1982.
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Dallas Attorney Linda Coffee displays 44 pages in a law book that pertain to the Supreme Court decision that legalized abortions in her office on Jan. 21, 1983. Ten years prior, she was one of two attorneys that argued the case before the Supreme Court.
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Pro-choice activists torch an American flag on July 3, 1989, at the Kluczynski Federal Building in Chicago during a protest over the U.S. Supreme Court's abortion decision.
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Teresa Vrazel prays with her group from the Franciscan University in Stubenville, Ohio, near the U.S. Capitol on Jan. 22, 1999, during the annual, March for Life rally in Washington.
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Pro-Life activist Heather Pollard fights the cold to stage a silent protest at the Supreme Court on Jan. 22, 2005, in Washington. Both sides of the abortion issue came to Washington for the anniversary of the Roe v. Wade decision.