On April 18, 1906, at 5:13 a.m., an earthquake estimated at close to 8.0 on the Richter scale strikes San Francisco, California, killing an estimated 3,000 people as it topples numerous buildings. The quake was caused by a slip of the San Andreas Fault over a segment about 275 miles long, and shock waves could be felt from southern Oregon down to Los Angeles.
With the world anxiously watching, Apollo 13, a U.S. lunar spacecraft that suffered a severe malfunction on its journey to the moon, safely returns to Earth. On April 11, the third manned lunar landing mission […]
On September 7, 1940, 300 German bombers raid London, in the first of 57 consecutive nights of bombing. This bombing “blitzkrieg” (lightning war) would continue until May 1941. After the successful occupation of France, it […]
Earth Day, an event to increase public awareness of the world’s environmental problems, is celebrated in the United States for the first time on April 22, 1970. Millions of Americans, including students from thousands of […]
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