• Darwin Day

    Darwin Day celebrates the life and work of Charles Darwin, a secular holiday widely celebrated within the global community with participation from all sectors of society. Even mainline churches have participated, celebrating the day as Evolution Sunday or Evolution Weekend (see the Clergy Letter Project for details). Under any of these names, this day celebrates the wonder and beauty of both […]

  • Sacramento Darwin Day

    MOSAC Science Museum 400 Jibboom St, Sacramento

    Location :  MOSAC Science Museum, 400 Jibboom St, Sacramento, see map Presenting the 29th fabulous year of the Darwin Day Birthday Gala, Sacramento's coolest, most singular, most go-to event of science and humanity, brought to you by area science advocates, civic groups and nerds on too much coffee. An in-person event at the MOSAC Science Mujseum, marking "Chuck" Darwin's 217rd birthday. Open to all. But ... […]

    $25
  • The Underground Railroad

    Reason Center 1300 Ethan Way Suite 675, Elk Grove, United States

    Sunday, February 22, 2026, 02:00pm - 04:00pm Location :  Reason Center, 1300 Ethan Way, Ste 675, Sac., map Presenter Anne M. Rewell of the CSUS Renaissance Society will tell us about the Underground Railroad, and explore the routes utilized by escaping enslaved people in the Antibellum South, as well as those who collaborated to assist, the secret networks, the waystations and rest stops. The Railroad (not a […]

  • International Women’s Day

    International Women's Day (IWD), an international celebration, honors the social, economical, and political achievements made by women everywhere. This secular holiday dates back to the early 1900's, a time of turbulent growth in the industrialized world that saw growing demands for women to have the right to vote. Among other relevant historical events, it commemorates the […]

  • Board of Directors Meeting

    Reason Center, 1300 Ethan Way, Ste 675, Sac., map (https://goo.gl/maps/S5MR1e8ZodBzb4TG8)

    It's an AOF planning meeting, mainly for AOF directors & officers, but open to all of you. These happen as required and are a lot more fun than they sound. (learn/fearless-leaders.html) Please join us, meet the Board, keep an eye on the shenanigans. We love visitors. We have snacks. And maybe you'll have some good […]

  • Movie and Discussion

    Reason Center, 1300 Ethan Way, Suite 675, see map (https://goo.gl/maps/RwiUgEJ5ESHRhrPu8)

    Join us for a cozy in-person Movie Night at Sacramento's Reason Center (https://reasoncenter.org/), in a quiet room with cushy seating, a huge screen, air conditioning, and refreshments right at hand. The movie title is a secret because of our MPLC License (https://www.mplc.org/page/the-umbrella-license) and certain legal folderol -- but we can drop hints. This 2011 film starring Owen Wilson, Rachel […]

  • Pi Day

    Pi, Greek letter (Π), is of course the symbol for the ratio of the circumference of a circle to its diameter. Pi = 3.1415926535... (This is pi to just ten decimal places; it is an irrational number, meaning the digits continue infinitely without repeating.) Math enthusiasts around the world celebrate Pi Day on March 14th, i.e. 3/14 in the American dating […]

  • Freedom of Information Day

    Freedom of Information (FOI) Day (http://www.firstamendmentcenter.org/press/information/topic.aspx?topic=FOI_Day) is an annual event on March 16, the birthday of James Madison, widely regarded as the Father of the Constitution and a foremost advocate for openness in government. On this day, the American Library Association (http://www.ala.org/) presents the James Madison Award and the Eileen Cooke State & Local Madison […]