Within an 18-month period, 1665 to 1667, he made discoveries about light, color & gravitation
In 
April 1667, Newton returned to Cambridge and, against stiff odds, was... [DOC] [TLE] Isaac Newton - Philosopher, Astronomer, Physicist, Scientist ... [PAR] Apr 20, 2016 ... With discoveries in optics, motion and mathematics, Newton developed the ... 
also named Isaac Newton, who died three months before he was born.