Newspaper article Pittsburgh Post-Gazette (Pittsburgh, PA)

On This Day, April 20

Newspaper article Pittsburgh Post-Gazette (Pittsburgh, PA)

On This Day, April 20

Article excerpt

1901 Pittsburgh's Golden Triangle had a flood equaling that of February 1884, when floodwaters rose higher than 36 feet.

1977 The U.S. Supreme Court, in Wooley v. Maynard, ruled 6-3 that car owners could refuse to display state mottos on license plates, such as New Hampshire's "Live Free or Die."

1999 The Columbine High School massacre took place in Colorado as Eric Harris and Dylan Klebold shot and killed 12 classmates and one teacher before taking their own lives.

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

2009 Construction began on the first of four nuclear power plants in China by Westinghouse Electric Co. of Monroeville.

2010 An explosion on the Deepwater Horizon oil platform, leased by BP, killed 11 workers and caused a blowout that spewed about 200 million gallons of crude into the Gulf of Mexico. …

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