I think Axum had to isolate itself from the Islamic countries that surrounded it.
They were working at home, or either being a slave somewhere.
hope that this helps. =)
If the question is asking what the first part of the U.S. Constitution is called it's the preamble ( might be spelled wrong).
Martin Luther was excommunicated becuase he was going against the Roman Catholic church. He was saying that you didn't need to pay indulgences to the Roman Catholic church just to get into heaven. All you had to do was believe that Jesus christ died on the cross to save our sins. So when he went against the Roman Catholic church, the pope was mad becuase if people started believing him, they would lose money.
I hope this helped you out!