A. E. Douglass

A. E. Douglass, born Andrew Ellicott Douglass on July 5, 1867, in Windsor, Vermont, was a pioneering American astronomer and archaeologist whose contributions significantly shaped the field of dendrochronology. His groundbreaking work began in 1894 at the Lowell Observatory, where he discovered a remarkable correlation between tree rings and the sunspot cycle, laying the foundation for a new method of dating wood through the analysis of growth ring patterns.

During his tenure at the observatory, Douglass served as an assistant to the renowned astronomer Percival Lowell. However, his scientific inquiries led him to question the existence of artificial canals on Mars and the visibility of spokes on Venus, resulting in a professional rift between him and Lowell.

In recognition of his significant contributions to science, Douglass was elected to the American Philosophical Society in 1941. His legacy is further honored through the naming of craters on both the Moon and Mars after him, a testament to his lasting impact on astronomy and archaeology.