Right there with you.
I remember being completely shocked when I learned about the black town of Rosewood, Florida, being entirely destroyed, and its residents either killed or driven away, which happened in 1923, just a couple of years after Black Wall Street was destroyed.
But then, just this past week, my husband told me about a similar case in North Carolina, where an entire African American community was destroyed, and that happened in 1975!!!
And, even though I grew up in and around the L.A. area, I previously had no knowledge about the Bruce family having their land and businesses stolen by the City of Manhattan Beach, even though I've long been interested in the history of the area.
A lot of people, who were either responsible, or were protecting those who were, made damned certain that these histories stayed buried for as long as possible.
I'm ever grateful for the internet, and for journalists and lay researchers digging deep and bringing these stories to light, as otherwise we would still have no idea.