Plague retreat at Woolsthorpe
· Woolsthorpe Manor, Woolsthorpe-by-Colsterworth, Lincolnshire, England

Wikimedia Commons · Creative Commons Public Domain Mark 1.0 · file After Cambridge closed during the plague, Newton spent an extended period at Woolsthorpe. This retreat encompassed formative investigations in calculus, optics, motion, and gravitation. The residence was interrupted by a short return to Cambridge in spring 1666.