Sandra Day O’Connor, orig. Sandra Day, (born March 26, 1930, El Paso, Texas, U.S.—died Dec. 1, 2023, Phoenix, Ariz.), U.S. jurist. After graduating first in her law school class at Stanford University (1950), she entered private practice in Arizona. She served as an assistant state attorney general (1965–69) before being elected in 1969 to the state senate, where she became the first woman in the U.S. to hold the position of majority leader (1972–74). After serving on the superior court of Maricopa county and the state court of appeals, she was nominated in 1981 by Pres. Ronald Reagan to the Supreme Court of the United States, becoming the first female justice in the court’s history. Known for her dispassionate and meticulously researched opinions, she proved to be a moderate and pragmatic conservative who sometimes sided with the court’s liberal minority on social issues (e.g., abortion rights). O’Connor retired from the court in 2006.
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