March 28 Three Mile Island
AD 37 – Roman emperor Caligula accepts the titles of the Principate, entitled to him by the Senate. 193 – Roman Emperor Pertinax is assassinated by Praetorian Guards, who then sell the throne in an auction to Didius Julianus. 1776 – Juan Bautista de Anza finds the site for the Presidio of San Francisco. 1814...