Any Black cultural events going on in st. louis?

Answer 1

1. The Black Repertory Theater, St Louis ticks all the boxes.
http://www.theblackrep.org/site/

2. The Old Courthouse, St. Louis has just opened a a new semi-permanent exhibition about the Dred Scott case. There are further details on the following linked page, plus information on other permanent visitor sites which should be of interest to you (make sure you don't miss the "10 Steps to Black History" link) ....
http://www.explorestlouis.com/uniquelystl/multiCultural.asp?PageType=2