This Day in History — February 23
Today is the 54th day of 2021. There are 311 days left in the year. TODAY’S HIGHLIGHT1954: The first mass inoculation of children against polio with the Salk vaccine begins in Pittsburgh, Pennsylvania. OTHER EVENTS1573: Irish rebellion is crushed with surrender of James Fitzmaurice; pacification of Perth ends fighting in Scotland between Regent and supporters of Mary Queen of Scots.