📅 Today in HistoryMarch 22

Start of the Bostran era, the calendar of the province of Arabia Petraea.

Roman emperor Severus Alexander is murdered, marking the start of the Crisis of the Third Century.

Æthelred of Wessex is defeated by a Danish invasion army at the Battle of Marton.

Battle of Yashima: the Japanese forces of the Taira clan are defeated by the Minamoto clan.

Vox in excelso: Pope Clement V dissolves the Order of the Knights Templar.

Ferdinand II of Aragon commissions Amerigo Vespucci chief navigator of the Spanish Empire.

The Pilgrims of Plymouth Colony, led by governor John Carver, sign a peace treaty with Massasoit, sachem of the Wampanoags; Squanto serves as an interpreter between the two sides.

Jamestown massacre: Algonquians kill 347 English settlers around Jamestown, Virginia, a third of the colony's population, during the Second Anglo-Powhatan War.

The Massachusetts Bay Colony outlaws the possession of cards, dice, and gaming tables.

Anne Hutchinson is expelled from Massachusetts Bay Colony for religious dissent.