Jacksonville (Fla.) Public Library writes: “Considered the longest-running African American holiday, Juneteenth has been celebrated by African Americans since the 1800s and became a federal holiday in 2021. A combination of the words ‘June’ and ‘nineteenth,’ it is celebrated on the anniversary of the order, issued by Major General Gordon Granger on June 19, 1865, proclaiming freedom for slaves in Texas. If you’re still somewhat new to Juneteenth celebrations or you’d like to share the history with your children, the library has books to help you out!” Lone Star College–University Park (Texas) Library offers a research guide with history, ebooks, primary sources, and more.