Holidays and observances on May 22

20 observances are celebrated on May 22 around the world: Abolition Day (Martinique), Aromanian National Day (marginal, celebration on May 23 is more common), Christian feast day: Castus and Emilius, Christian feast day: Fulk, Christian feast day: Humilita, Christian feast day: Blessed John Forest. 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.

80 documented historical events happened on May 22, from antiquity to the present day. The best known is this: Arab–Byzantine wars: The Byzantine navy began a raid on the Nile Delta port city of Damietta, whose garrison was absent at the time. On the same day, in another year: Albrecht von Wallenstein and King Christian IV of Denmark signed the Treaty of Lübeck to end Danish intervention in the Thirty Years' War. 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.