Happy Immaculate Conception Day! Did you think that this was the day that Mary did (not) get shtuped by Joseph and Jesus was immaculately conceived? I did. I even tweeted about it, erroneously. Thank god for Wikipedia and the efforts of reporters on the religion beat. Because it turns out that December 8 is the feast of the Immaculate Conception of the Blessed Virgin Mary, whose birthday is celebrated September 8 and whose own conception is said to fall nine months earlier, on today’s date. As one Wikipedia contributor ponderously points, the Virgin Mary’s “immaculate conception in the womb of her mother, through sexual intercourse, should not be confused with the…