Which Happened First?

Andrew Ellicott Douglass

Andrew Ellicott Douglass
Image: Unknown photographer · Public domain · source

A. E. Douglass was an American astronomer and archaeologist. He discovered a correlation between tree rings and the sunspot cycle, and founded the discipline of dendrochronology, which is a method of dating wood by analyzing the growth ring pattern.

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

Who was born first?

Timeline

  1. Andrew Ellicott Douglass (this page)July 5, 1867 – March 20, 1962
  2. Charles Dillon PerrineJuly 28, 1867 – June 21, 1951
  3. Charles FabryJune 11, 1867 – December 11, 1945
  4. Edgar de WahlAugust 11, 1867 – March 9, 1948
  5. Johannes FibigerApril 23, 1867 – January 30, 1928
  6. Maxime BôcherAugust 28, 1867 – September 12, 1918

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Andrew Ellicott Douglass (July 5, 1867 – March 20, 1962) · Which Happened First?