September 27

This Day in History

1905

Einstein’s Revolutionary Equation Is Published

On this day in 1905, the publication of Albert Einstein's paper "Does The Inertia Of A Body Depend Upon Its Energy Content?"–including his most famous equation, and perhaps the most famous equation … (more...)

1822

Rosetta Stone Is Deciphered

After a decades-long quest to understand the mysterious scripts on the hulking chunk of black granite that is the Rosetta stone, French linguist Jean-Francois Champollion cracked perhaps the greatest … (more...)

1540

Jesuits Receive Charter

In Rome, the Society of Jesus--a Roman Catholic missionary organization--receives its formal charter from Pope Paul III. Ignatius De Loyola, a Spanish soldier turned priest, founded the Society in … (more...)