Once a year, history buffs open the old Mint building at Fifth and Mission streets in San Francisco to the public for a weekend event called San Francisco History Days. The event pulls together historians and historical organizations from around the Bay to celebrate and share local history.

The event takes place Saturday and Sunday, March 4 and 5, from 11 a.m. to 5 p.m. on Saturday, and 11 a.m. to 4 p.m. Sunday at 88 5th St. in San Francisco.

Alameda Museum will be a featured organization at the event. Representatives from the museum will be on hand both days, sharing Alameda history stories from the Transcontinental Railroad to peanut butter and from the world’s first attempt at containerized shipping to the first transPacific air mail delivery, just to name a few. 

Alameda Sun publishers and historians Dennis Evanosky and Eric J. Kos will be available to sign copies of their new book, Lost Ballparks, at an author’s table from 1:30 to 4 p.m. on Sunday. Copies of all their recent titles will be available for sale.

San Francisco History Days is free and open to the public and hosted by the City and County of San Francisco Office of the Mayor and Non Plus Ultra. Find out more at sfhistorydays.org.