[quote=@DX3214]
Make your roman empire rule the world sounds very complicated for a time before advanced travel or maybe do an Alexander the great effect which is basically ruling the [u][i][b]known [/b][/i][/u]world I think would be better but if its world conquest you might need to bump a little the tech tree. 

[/quote]

To be a pedantic little bitch: he didn't even do that. He marched east, not west. He kind of just let Italy vibe and Europe to Iberia would have been part of the known world to the likes of Alexander.