Wednesday, March 28, 2012
March 28, 37 Roman Emperor Caligula accepted the titles of the Principate, entitled to him by the Senate. 193 Roman Emperor Pertinax was assassinated by Praetorian Guards, who then sold the throne in an auction to Didius Julianus. 364 Roman Emperor Valentinian I appointed his brother Flavius Valens co-emperor. 845 Paris was sacked by Viking raiders, probably under Ragnar Lodbrok, who collected a huge ransom in exchange for leaving. 1515 St. Teresa of Ávila was born. Teresa was a mystic, a reformer of the Carmelite order, and author of spiritual literature. She was the first woman to be named a doctor of the Church.