Your map is impossible with a Post-1900 POD. Plus, I believe there is a map thread in another forum. You might try again there.
oh, it's about the POD, not the current year, gotcha, I'm kinda new here
POD is Point of Division or smth, right? If you could link a thread with common abbreviations and stuff it would be much appreciated
Point of Divergence
I suspect there's a primer somewhere, but I've been here for 20 year and have no idea where it is. I am sure a mod will be along soon to straighten things out. Good luck!