Today in History: Saturday, April 20, 2013

历史上的今天:2013年4月20日，星期六

On April 20, 1999, two students went on a shooting rampage at Columbine High School in Littleton, Colo., killing 12 students and one teacher before taking their own lives.

1792 France declared war on Austria, marking the start of the French Revolutionary wars.

1812 Vice President George Clinton, a former New York governor, died at age 73.

1836 The Territory of Wisconsin was established by Congress.

1889 Nazi leader Adolf Hitler was born in Braunau, Austria.

1902 Scientists Marie and Pierre Curie isolated the radioactive element radium.

1912 Fenway Park in Boston and Tiger Stadium in Detroit opened.

1939 Baseball Hall of Famer Ted Williams made his major league debut with the Boston Red Sox.

1940 RCA publicly demonstrated its new electron microscope.

1971 The U.S. Supreme Court upheld the use of busing to achieve racial desegregation in schools.

1972 The manned lunar module from Apollo 16 landed on the moon.

1980 The first Cubans sailing to the United States as part of the massive Mariel boatlift reached Florida.

2008 Danica Patrick became the first female winner in IndyCar history by capturing the Indy Japan 300.

2010 An explosion on the Deepwater Horizon oil platform, leased by BP, killed 11 workers and began spewing an estimated 200 million gallons of crude into the Gulf of Mexico for nearly three months.