July 9 (UPI) -- On this date in history:
In 1850, U.S. President Zachary Taylor died suddenly of cholera. He was succeeded by Millard Fillmore.
In 1868, the 14th Amendment to the U.S. Constitution was ratified, guaranteeing African-Americans full citizenship and all people in the United States due process under the law.
In 1877, the first Wimbledon tennis tournament was contested at the All-England Croquet and Lawn Tennis Club.
In 1893, Chicago surgeon Dr. Daniel Hale Williams performed the first successful open-heart surgery.
In 1943, U.S., Canadian and British forces invaded Sicily during World War II.
In 1960, Soviet Premier Nikita Khrushchev threatened the United States with rockets if U.S. forces attempted to oust the communist government of Cuba.
In 1982, a Pan Am Boeing 727 jetliner crashed in Kenner, La., shortly after takeoff from New Orleans, killing 154 people.
In 1992, Democratic presidential hopeful Bill Clinton picked U.S. Sen. Al Gore, D-Tenn., as his running mate.
In 1993, British and Russian scientists identify the remains of the last Russian czar's family found in a shallow grave in Yekaterinburg two years before.
In 2004, a report by the U.S. Senate Select Committee on Intelligence accused the CIA and other intelligence agencies of producing false and misleading pre-war information about Iraq's weapons program.
In 2006, a S7 Airlines Airbus from Moscow taking children to a vacation area in Siberia crashed, killing about 120 of the 203 people aboard.
In 2011, after more than half a century of struggle and violence that claimed an estimated 2 million lives, the Republic of South Sudan declared its independence from Sudan and became Africa's 54th nation.
In 2017, Iraqi Prime Minister Haider al-Abadi declared victory over the Islamic State militant group in Mosul after months of fighting.
In 2019, members of Parliament voted to legalize same-sex marriage in Northern Ireland.