Knoxville was the first capital city of Tennessee. And Nashville is the current capital.
He wanted to inform the country about the war and provide comfort for them during the depression
Since i can’t see the timeline i’m just gonna assume that it’s referring to Pax Romana, since the rest of those things were not as long as Pax Romana
A lot of reasons while others were struggling with monarchy and oligarchy etc. they didn't want to and they did prefer independence.