On this day: April 26

Published On: Apr 25 2013 10:18:08 AM CDT   Updated On: Apr 26 2013 01:00:00 AM CDT

English settlers make their first landing in North America, John Wilkes Booth is shot and killed, an explosion rocks the Chernobyl Nuclear Power Plant, and Lucille Ball dies, all on this day.

OTD April 26 - Charles Richter
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U.S. Geological Survey

1900: Seismologist and physicist Charles Francis Richter, most famous as the creator of the Richter magnitude scale, which, until the development of the moment magnitude scale in 1979, measured the size of earthquakes, is born in Overpeck, Ohio.

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