★★★★★
Birth of Dolly the sheep
Dolly the sheep, the first mammal cloned from an adult somatic cell, is born at the Roslin Institute in Scotland.
Science· United Kingdom
- 1996
- 1943★★★★★
Battle of Kursk
Germany's last major offensive on the Eastern Front fails against Soviet defences in one of the largest tank battles in history.
War· Russia, Germany - 1687★★★★★
Newton publishes the Principia
Isaac Newton publishes "Philosophiæ Naturalis Principia Mathematica", setting out the laws of motion and universal gravitation.
Science· United Kingdom