This information was originally shared here a little more than a year ago. The compiler of the information at the links has continued to update and maintained it so all of us can learn more about Black History throughout the year.
Author and activist, Charles A. Preston maintains this Google doc on his own. I discovered him from a random Twitter post last year, and feel fortunate that I did.
The multi-folder Google doc is chock full of information about many aspects of Black History from Afro-Futurism to Zora Neale Hurston and many others in between. I believe he is continuing to update it. When using his folders, remember to give him credit as well as linking to his Twitter or website (linked below).