Note: The below articles are recommended for a brief overview, but I also highly suggest researching on your own and reading non-mainstream media articles on the previous and current situation.
TW: Racism/discrimination and violence.
A brief rundown of who they are and their history.
An article that briefly sums it up. This does not cover all of it, so please do research further.
An article about Muslim women being forced to abort as a part of China's purging program.
What can I do?
More than donation is needed. See below article as a starting point.