January 13:St. Knut's Day in Finland and Sweden
January 13 is the 13th day of the year in the Gregorian calendar. There are 352 days remaining until the end of the year (353 in leap years).
It is sometimes celebrated as New Year's Eve (at least in the 20th & 21st centuries) by ethnic groups and religious orders still using the thirteen-days-adrift Julian calendar (Old New Year).
Events:
532 – Nika riots in Constantinople.
1435 – Sicut Dudum, forbidding the enslavement of the Guanche natives in Canary Islands by the Spanish, is promulgated by Pope Eugene IV.
1547 – Henry Howard, Earl of Surrey is sentenced to death.
1607 – The Bank of Genoa fails after announcement of national bankruptcy in Spain.
1666 – French traveller Jean-Baptiste Tavernier arrived in Dhaka and met Shaista Khan.
1793 – Nicolas Jean Hugon de Bassville, representative of Revolutionary France, lynched by a mob in Rome
1797 – French Revolutionary Wars: A naval battle between a French ship of the line and two British frigates off the coast of Brittany ends with the French vessel running aground, resulting in over 900 deaths.
1815 – War of 1812: British troops capture Fort Peter in St. Marys, Georgia, the only battle of the war to take place in the state.
1822 – The design of the Greek flag is adopted by the First National Assembly at Epidaurus.
1830 – The Great Fire of New Orleans begins.