In the late 1400s and 1500s, the main reason for exploration in the New World was the need for alternate trade routes. They have no idea the Americas even existed, however.
Explanation:
This question presupposes that Muhammed Ali did in fact bring people together. During his working lifetime, that is, when he was actually boxing, Muhammed Ali was an incredibly controversial figure who many wanted to see lose. His talent led some people to him but he was not a universally beloved figure in his time. In fact, the movie Rocky is seen as a jab (pun intended) at Ali
They had no relationship only with Persians which made a lot of battles with them
Intermediate-Range Nuclear Treaty