Many of the common tropes/subjects of alternate history 
are based on alternative European histories -- and thus don't take 
much of the rest of the world, and non-white people, into account. 
There are notable exceptions -- Kim Stanley Robinson's Years of Rice 
and Salt, or our Honored Guest Nisi Shawl's Everfair -- but what are 
some other examples? What are the benefits (and the dangers) of 
tackling this approach? What are some of the (currently) missed golden 
opportunities for alternate histories involving POC?