This week in 41 CE, a faction Roman leaders assassinated their emperor, Caligula. The emperor had oppressed the nobles and the Senate (though not necessarily the common people), so this was not the first plot against his rule. The trigger for this final and successful conspiracy isn’t entirely clear, but Caligula had recently announced plans

This week in history, the United Kingdom’s Captain James Cook celebrated two accomplishments. In 1773, he led the first known expedition to sail south of the Antarctic Circle. Cook and his crew were trying to find an imagined continent called Terra Australis – or to prove that it didn’t exist. Scholars had long believed the Earth must

This week in 1809, Louis Braille was born in a small French town called Coupvray. He’s known for creating the braille reading and writing system for the visually impaired. Louis lost his eyesight at age 5. At age 10, he enrolled in one of the first schools for blind children. The school used the “Haüy

This week in 1801, astronomer-priest Giuseppe Piazzi discovered a new astronomical body between the orbits of Mars and Jupiter. He named it Ceres Ferdinandea. Ceres was the ancient Roman goddess of agriculture and motherhood – the Latin version of the Greeks’ Demeter, mother of Hades’ wife Persephone. So in choosing Ceres, Piazzi followed tradition: naming astronomical bodies after Roman

This week in 537, eastern Roman emperor Justinian I completed the Hagia Sophia: the great cathedral of his capital, Constantinople. Upon completion and for centuries thereafter, it was the largest building in the world. Justinian’s realm was the eastern half of the original Roman Empire, and the Hagia Sophia became the central cathedral of the

This week in 1773, the Sons of Liberty disguised themselves as Native Americans, boarded British ships in Boston Harbor, and dumped 342 chests of tea into the water. The Boston Tea Party escalated the colonists’ struggle against the Tea Act, which the British Parliament had passed in May, imposing a tax on tea. The colonists

This week in 1768, Colin Macfarquhar and Andrew Bell of Scotland published the first edition of Encyclopaedia Britannica. It had just 3 volumes—quite a contrast to the thirty-two volumes of the fifteenth and final edition, published in 2010. Despite small beginnings, Britannica quickly gained a reputation for excellence and was soon considered the most authoritative English language encyclopedia.

This week in 1852, Charles-Louis Napoléon Bonaparte became Emperor of France. His father was the younger brother of the original Napoleon. And his mother was the daughter of the famous Josephine – the long-term mistress and eventually wife of the first Napoleon — by her other (first) husband. To capitalize on his famous uncle’s reputation,

This week in 534 BCE, Thespis of Icaria became the first person we know of to portray a character on stage in ancient Greece. He sang about myths to an audience in Athens. But rather than just narrating by song, he played the various characters in the story, using masks to differentiate them. Thespis also

This week in 1558, Elizabeth Tudor was declared queen of England and Ireland, following the untimely death of her half-sister, Queen Mary. Elizabeth was the daughter of King Henry VIII by his second wife, Anne Boleyn. Her first and most important job as queen was to marry and produce an heir. Her sister Mary had