Juneteenth: A holiday a long time in coming

I had never heard of Juneteenth. It never came up in any aspect of my education, not in grade school, high school, nor college; not in general history, Social Studies, nor American History. I guess the wisdom of textbooks and curricula for all our country's youth was to ignore that enslaved African Americans living in Texas had never learned that they'd been freed by the Emancipation Proclamation, declared two and a half years prior to their hearing about it.