RP forum help

Hey guys, I want to make a Forum RP for like Hellenistic Greece/Rome/Macedonia/Egypt/Seleucid Empire/ etc. And I need help establishing like a timeline and such. And maybe a little bit of facts and other things like that. I am really good at these things, I just have a bad perception of time. Maybe you can be an acceptor once I make the Forum for the RP. If you want to RP starwars like right now though, here's my forum, its for the Rebellion Era though..... star-wars-empire-app-t80984.html