Battle of Thermopylae, August 480 BC

Leonidas at Thermopylae is an 1814 painting by Jacques-Louis David now on show at the Louvre. It shows the Spartan king Leonidas prior to the Battle of Thermopylae.

Albert Einstein’s Essay on Racial Bias in 1946

In the years after World War II, Albert Einstein took up the mantle of confronting racism in America. He became a good friend and comrade of the prominent opera singer Paul Robeson, co-chaired an anti-lynching campaign, and was an outspoken supporter of W.E.B. Du Bois.