Interactive Timelines

Explore various subjects of Napa County history. Note: these interactive timelines have been created on a platform not-compatible with ADA requirements. We are currently working on a suitable replacement.



The St. Helena Historical Society has written extensive timelines of the local St. Helena History – Click Here to explore the research on their website.

Napa County History

The first settlers came to Napa County about 10,000-12,000 years ago. The Patwin, so-called for their word pat-win, meaning “people,” were a southern branch of the Wintu (or Wintun) that occupied most of the land around Suisun, Vacaville, and Putah Creek.

Napa County History