April 8 (UPI) -- On this date in history:
In 1913, the 17th Amendment to the U.S. Constitution was adopted, requiring that U.S. senators be "elected by the people."
In 1952, U.S. President Harry Truman ordered government seizure of the steel industry to avoid a general strike.
In 1960, the United States Senate passed the landmark Civil Rights Act of 1960. President Dwight D. Eisenhower would sign it into law on May 6, 1960.
In 1974, Hank Aaron hit his 715th home run, breaking Babe Ruth's longstanding career record. Aaron played two more seasons, ending with 755 home runs, a total eventually surpassed by Barry Bonds, who had 762.
In 1993, Marian Anderson, the first African-American singer to appear at New York's Metropolitan Opera, died at age 91.
In 2005, about 250,000 mourners attended a 3-hour funeral mass for Pope John Paul II in Rome's St. Peter's Square while about 1 million others gathered nearby. Among those in attendance were U.S. President George W. Bush and about 100 other world leaders.
In 2008, American Airlines grounded all 300 of its MD-80 jetliners after an FAA review found faulty wiring in nine of them. Over the next five days, American canceled about 3,300 flights, disrupting travel of more than 100,000 passengers.