Earlier quoted context omitted.
Google "Black Wall street massacre." There are plenty of articles. We probably don't hear more about it because it makes white people uncomfortable.
Sorry for not knowing about local history from 100 years ago from a far away nation. The main reason we don't hear about this more is probably because neither offenders nor victims, both black and white, are alive anymore.
We don't hear about it because whites in America aren't comfortable hearing about it. Another comment in this discussion indicates it was actively covered up and expunged from local history records.