As hard as we try to check, double-check, and triple-check our work, sometimes we slip-up! This page is meant to correct and/or clarify  errors in the calendar. We appreciate your understanding. Thanks,


2020 Edition - A Journey into 365 Days of Black History

William Leidesdorff a pioneer settler in the city of San Francisco is featured in the 2020 edition calendar.

In addition, an image of the street sign with his name on it directly at the bottom of the TransAmerica Building (the Pyramid). The credit for this image was omitted. It should be given to Danielle Mirabella, a brilliant photographer and longtime friend of IOKTS.