Happy 415 Day: San Francisco is 174 Years Old Today (2024)

Submitted by the Event Organizer

Happy Birthday to the city of San Francisco! San Francisco was incorporated on April 15, 1850.

Now, San Franciscans celebrate #415 Day on April 15th every year which is not only our city’s area code, but also the day when San Francisco officially became a city.

And yes, San Francisco does have two “birthdays.” San Francisco was founded on June 29, 1776, when colonists from Spain established Presidio of San Francisco at the Golden Gate and Mission San Francisco de Asís a few miles away, all named for St. Francis of Assisi. Read more about the founding of San Francisco at sfmuseum.org.

And let’s also acknowledge that we occupy the unceded Ancestral homeland of the Ramaytush Ohlone peoples, who are the original inhabitants of the San Francisco Peninsula.

Learn more specifically about how #415 Day was coined and its origins which was initiated by long time residents against gentrification. They held a Solidarity Forever celebration in Dolores Park on 4/15/16.

Happy 170th Birthday San Francisco! ? SF was incorporated on April 15, 1850. What’s your favorite memory of our home city?#WindowViewWednesday pic.twitter.com/8ngJof6G4N

— San Francisco International Airport (SFO) ✈️ (@flySFO) April 16, 2020

❤️?#415Day pic.twitter.com/c67HU880OO

— San Francisco 49ers (@49ers) April 16, 2020

On April 15th in 1850, San Francisco was incorporated, making today our 170th birthday. Since we can’t physically be together today, share your favorite memory of San Francisco. Your memories will give us and everyone else some hope and inspiration. pic.twitter.com/MlqDVx6II0

— Only in SF #StayHome (@onlyinsf) April 15, 2020

The streets of San Francisco are looking a little lonely and uninhabited these days.

Happy #415Day to this beautiful City by the Bay. Grateful to call this place home. pic.twitter.com/Zw7bI4UEjH

— Mother of Pizza Without Pineapples & Staying Home (@carynrweiss) April 15, 2020

Happy #415day to all my fellow #SanFrancisco natives! We will get through this pandemic together! (You can see my home at the left just under the trees of Buena Vista Park @KarlTheFog). pic.twitter.com/LKhQnpVGCj

— Palmer Cat Shelters in Place, Do You? (@PalmerCatSF) April 15, 2020

Happy #415day to all my fellow SF natives.
Lived in the Sunset and Potrero Hill. Will miss that view of SF from Potrero Hill forever. So lucky to look at that every day. Breathtaking. pic.twitter.com/jtDFYR9ej3

— PartyofFive (@momlissak) April 15, 2020

Happy 415 day to all my Frisco natives out there. Amid all the changes to our city it’s still a blessing to be able to call this beautiful city my home. #415Day #SanFrancisco #Frisco pic.twitter.com/2aQfQ8Ra9x

— The Dreamer (@John_MonSF) April 16, 2020

happy #415Day! ?

proud to call this city our home ? #SF pic.twitter.com/FMp6DSQE6U

— GoldenvoiceBay (@GoldenvoiceBay) April 16, 2020

Happy #415Day! Here’s a few of our favorite pictures. Spot a theme?

Photo cred: @sfmsr @woncoolgirl pic.twitter.com/TwMCnjOeIM

— SF Transit Riders (@SFTRU) April 15, 2020

Disclaimer: Please double check event information with the event organizer as events can be canceled, details can change after they are added to our calendar, and errors do occur.