jtb1127
Deity
It is the current anthem. Countries like Turkey or Russia would be a lot darker if it weren't.
Black is the UN Veto powers. And gray is countries that used to be part of a veto power. So I'm gonna guess, date of admission to the UN? Or something else involving the UN?
I'd rather say number of times as a seating member of the security council. Though the relation to WW2 does seem to escape me. Was that just a red herring? If so, then please, don't do that anymore, it's annoying. (because the black = veto powers was fairly obvious, I just chose not to point it out, as it was clearly WW2-related, the United Nations is post-WW2. But I guess that was what the smiley was for?)