Which Happened First?

Charles Francis Richter

Charles Francis Richter
Image: en:Caltech photograph · Public domain · source

Charles Francis Richter was an American seismologist and physicist. He is one of the creators of the Richter scale, which, until the development of the moment magnitude scale in 1979, was widely used to quantify the size of earthquakes.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Who was born first?

Timeline

  1. Cecilia Helena Payne GaposchkinMay 10, 1900 – December 7, 1979
  2. Charles Francis Richter (this page)April 26, 1900 – September 30, 1985
  3. Frédéric Joliot-CurieMarch 19, 1900 – August 14, 1958
  4. Jan Hendrik OortApril 28, 1900 – November 5, 1992
  5. Ragnar GranitOctober 30, 1900 – March 12, 1991
  6. W. Edwards DemingOctober 14, 1900 – December 20, 1993

Related

Play a round with Science · 20th century