Ottoman sultan Mehmet II helped to strengthen the empire by :
Promoting religious divesity
This will bring loyalty from various group of people to the empire
hope this helps
There was trails all across The U.S. There was also coming from the other side of the world. lolz. And also walking I guess.
I would have to say that Augustus was more important because he started the Roman Empire on a stable footing, and ushered in the Pax Romana.