Juneteenth is the oldest known celebration marking the end of slavery in the United States. It was originally celebrated June 19, 1865. Here's what to know about the event, and where California fits in. More from The Sacramento Bee: Subscribe: https://bit.ly/2taRLFR Twitter: https://twitter.com/sacbee_news Facebook: https://www.facebook.com/sacramentobee Website: https://www.sacbee.com Digital news subscription: https://bit.ly/2uu9SYs