-
-
He finishes his book
-
-
-
-
first know Astronamical observation
-
-
Dialouge concering the two cheif world systems
-
-
-
Died
-
Born
-
-
Joins the staff if the Mount Wilson Observatory
-
-
Finds out that the galexies are moving farther away from earth
-
Dies from heart attack
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.