On This Day

A. E. Douglass

Archaeologist and Astronomer A. E. Douglass

Full Name: Andrew Ellicott Douglass
Profession: Archaeologist and Astronomer

United States of America

Biography: Discovered a correlation between tree rings and sunspot cycles leading to the establishment of dendrochronology which is the dating of past events by counting and analyzing tree rings.

Douglass also helped found Lowell Observatory in 1894.

Born: July 5, 1867
Birthplace: Windsor, Vermont, USA
Star Sign: Cancer

Died: March 20, 1962 (aged 94)

Historical Events

  • 1919-05-22 A. E. Douglass establishes the relative dates of two archaeological sites using ancient wood samples, marking a major step forward in the dating of archaeological sites

Biographies and Sources