Bata Van Ysselsteyn
Parents
Children

1687


Aug 7
1687 Isaac Newton's Philosophiæ Naturalis Principia Mathematica, known as the Principia, is published by the Royal Society of London. In it, Newton describes his theory of universal gravitation, explains the laws of mechanics and gives a formula for the speed of sound. The writing of Principia Mathematica ushers in a tidal wave of changes in thought, significantly accelerating the scientific revolution by providing new and practical intellectual tools and becomes the foundation of modern physics.

1722


Sep 23
Age: 35y
Tryntje Van Deusen - U.S., Dutch Reformed Church Records in Selected States, 1639-1989

birth of child


Tryntje Van Deusen
Albany, New York, USA ⇓
Isaac Van Deusen is present at the baptism of John McCagg and Tryntje Van Deusen's youngest daughter, Elisabeth. John McCagg and Tryntje Van Deusen and their family are referenced in the book "Abraham Van Deusen and many of his descendants" on pages 115 and 116.
2 Sources ⇓
1722 • The Silence Dogood letters appear, written by Benjamin Franklin.

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