♀ Geertje Ysselsteyn

1666 - 1763

 

Gertrude

Geertje Ysselsteyn
Parents
Spouse
Jacobus Le Maistre
Jacobus Le Maistre
1665 - 1741
Children
Gloude Le Maistre
Gloude Le Maistre
1692 - 1770

1666

1666 Isaac Newton uses a prism to split sunlight into the component colours of the optical spectrum, assisting understanding of the nature of light. He also develops differential calculus. His discoveries this year lead to it being referred to as his Annus mirabilis.

1763


Aug 27
Age: 97y
1763 Pontiac's Rebellion: At what is now Mackinaw City, Michigan, Chippewas capture Fort Michilimackinac by diverting the garrison's attention with a game of lacrosse, then chasing a ball into the fort.

Tags