Andrew Douglass Biography

A. E. Douglass was an American astronomer. 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. He started his discoveries in this field in 1894 when he was working at the Lowell Observatory. During this time he was an assistant to Percival Lowell and William Henry Pickering, but fell out with them, when his experiments made him doubt the existence of artificial "canals" on Mars and visible cusps on Venus.

Craters on the Moon and Mars are named in his honor. Source: Wikipedia

Biography Snapshot
Name:
Andrew Douglass
Full Name:
Andrew Ellicott Douglass
Nationality:
United States of America
Profession:
Astronomer
Date of Death:
March 20, 1962
Age at Death:
unknown
Andrew Douglass Timeline
  • 1919-05-22
    Andrew 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
Cite this page
APA Style

Andrew Douglass. (2020). The HistoryHop.com website. Retrieved 7:23am UTC, May 29, 2020, from historyhop.com/famous-people/andrew-douglass/bio.

Harvard Style

Andrew Douglass. [Internet]. 2020. The HistoryHop.com website. Available from: historyhop.com/famous-people/andrew-douglass/bio [Accessed 29 May 2020].

MLA Style

"Andrew Douglass." Bio. The HistoryHop.com website, 2020. Web. 29 May 2020.

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