If you have trouble pronouncing “sesquicentennial” you have some time to practice.

Santa Rosa will celebrate its 150th birthday on Saturday, Sept. 8, in Old Courthouse Square. The city was first incorporated in 1868.

Festivities begin at 3 p.m. with live music, children’s activities, food vendors, historical displays, speeches, a movie and the burial of the new time capsule to be unearthed in 2068. Winners of a youth art contest and writing contest will also be announced.

Visit santarosacity150.com for more information about the main event and scroll through the gallery above to see more photos of Santa Rosa from 1868 to 2018.