Boltwood, Bertram Borden
1870 - He was born on the 27th of July in Amherst, Massachusetts. He was the American pioneer of radiochemistry.
1897-1900 - He graduated from Yale University, and became a teacher.
1907 - He measured the age of rocks by the decay of uranium to lead.
- He got results of ages of 400 to 2200 million years, the first success of radiometric dating.
1927 - Bertram Borden Boltwood died at Hancock Point, Maine.
Page last updated: 6:15pm, 17th Aug '07