One thing about Eastern Europe is it changed hands a lot and borders have shifted over the last 100 or so years. So his Russian relatives could be in Romania without having to move too far.
Haven't used the genetics services of Ancestry.com but we have a huge family tree on it. My cousin and I pretty regularly contribute to it (which reminds me, a different cousin is having a baby so I'll need to add him/her in). I think it would be fascinating to get the testing. Hmm.
As for Black History Month, my company is posting more information on business funding for members of minorities (this also includes Native Americans, Latinx folks, etc.) as a subtle commemoration.
But that's mainly it in my life. I follow my alma mater's social media channels and so there's a lot on our esteemed African American graduates, including Dr. King (he got his PhD from Boston University).