Fatto matematico: 1213 is the number of different degree sequences for graphs with 8 vertices.
Trivia: 1213 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: April 27th is the day in 1992 that Betty Boothroyd becomes the first woman to be elected Speaker of the British House of Commons in its 700-year history.