What happened on December 12

32 documented historical events happened on December 12, from antiquity to the present day. The best known is this: At the Battle of Nineveh, the Byzantine army under Emperor Heraclius defeated the forces of Sasanian emperor Khosrow II, commanded by Rhahzadh, near present-day Mosul, Iraq. On the same day, in another year: Unable to defend her possessions, Maria of Enghien sold the lordship of Argos and Nauplia to the Republic of Venice. On Almanaccolo every event is listed in chronological order, grouped by century, and links to the Wikipedia article it comes from, so you can always read further or check the source. Alongside the events you find who was born and who died on this date, and which observances are celebrated around the world.

138 people with a Wikipedia article were born on December 12, including Álvaro de Bazán, Marquis of Santa Cruz, Samuel Hood, 1st Viscount Hood, William L. Marcy. The list spans every era and every field — art, science, politics, sport, entertainment — ordered by year of birth, from the earliest to the most recent. The six featured people are those most has been written about: the ordering uses the length of their Wikipedia article as an indicator of prominence. For each one you find their occupation, year of birth and a link to the full biography.

69 people with a Wikipedia article died on December 12, including Carloman II, Maimonides, Isabella of Mar. The list is in chronological order by year of death and spans all of documented history, from antiquity to the present day. For each person you find their occupation, the year and a link to the Wikipedia biography, where the full story and its sources can be read.

12 observances are celebrated on December 12 around the world: Christian feast day: Corentin of Quimper, Christian feast day: Jane Frances de Chantal, Christian feast day: Edburga of Minster-in-Thanet, Christian feast day: Finnian of Clonard, Christian feast day: Thomas Holland, Christian feast day: Ida of Nivelles. The list gathers national holidays, international days and religious or civil observances falling on this date in different countries, as recorded on Wikipedia. Some are fixed and recur on the same day every year; others depend on the local calendar. Each links to the article explaining its origin and meaning.