We all love our city, but as editors of this here San Francisco magazine, even we didn't know that SF had an official musical instrument.

In fact, there are several things that are official to the city, many of which have been part of our DNA forever. Read up and take notes—this may come in handy the next time you hit trivia night at Vinyl.

  

(via Bagerskan)

Did you know that San Francisco's official birthday is June 29, 1776? Just five days before the Declaration of Independence, Fathers Francisco Palou and Benito Cambon said mass at Mission San Francisco Asis (now Mission Dolores) to celebrate the feast day of Saint Peter and Saint Paul. The day became recognized as the city's birthdate.