Just as we celebrate the Bay Bridge's 75th anniversary, we look ahead at the modern engineering marvels that are making a new, state-of-the-art bridge a reality for 2013. The Bay Bridge is just one example of how looking to the past can influence change for the future. This year, as part of its "Seminars About Long-term Thinking" series, the Long Now Foundation is screening Lost Landscapes of San Francisco at the Castro Theatre.
Archivists Rick and Megan Prelinger will be the guest speakers at tonight's August meeting of the San Francisco History Association at St. Philip's Church in Noe Valley. The pair will present an overview of the sociohistorical resources available in their collection at the Prelinger Library in SOMA, which brings together a range of items including ephemera, periodicals, maps, and books dating back to 1888.