What happened on April 12

52 documented historical events happened on April 12, from antiquity to the present day. The best known is this: King Edwin of Northumbria was baptised by Bishop Paulinus of York. On the same day, in another year: Troops of the Fourth Crusade entered Constantinople and began a sack of the city, temporarily dissolving the Byzantine Empire. 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.

160 people with a Wikipedia article were born on April 12, including John Landy, Leonid Derbenyov, Lakshman Kadirgamar. 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.

103 people with a Wikipedia article died on April 12, including Pope Julius I, Karl Sverkersson, Margaret of Bourbon, Queen of Navarre. 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.

15 observances are celebrated on April 12 around the world: Children's Day (Bolivia), Christian feast day: Adoniram Judson (Episcopal Church), Christian feast day: Alferius, Christian feast day: Blessed Angelo Carletti di Chivasso, Christian feast day: Erkembode, Christian feast day: Pope Julius I. 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.