It is the 188th day of the year, with only 177 days remaining.
1456 - A retrial verdict acquits Joan of Arc of heresy, 25 years after her death.
1534 - It is the first known exchange between Europeans and natives of the Gulf of St. Lawrence in New Brunswick.
1846 - American troops occupy Montery and Yerba Buena, thus beginning the U.S. acquisition of California.
1863 - United States begins its first military draft, exemptions cost $300.
1865 - Four conspirators in the assassination of President Abraham Lincoln are hanged. Those included Lewis Powell, David Harold, David Atzerodt, and Mary Surratt.
1930 - Industrialist Henry J. Kaiser begins construction of the Hoover Dam.
1944 - The largest Banzai charge of the Pacific War at the Battle of Saipan during World War II.
1946 - Howard Hughes nearly dies, when his XF-11 spy plane prototype crashes in a Beverly Hills neighborhood.
1954 - Elvis Presley makes his radio debut when WHBQ Memphis played his first recording for Sun Records, "That's All Right."
1981 - President Ronald Reagan appoints Sandra Day O'Connor to become the first female member of the Supreme Court.
1983 - Samantha Smith, a U.S. schoolgirl, flies to the Soviet Union at the invitation of Secretary General Yuri Andropov.
1985 - Boris Becker becomes the youngest player ever to win Wimbledon at the age of 17.