I'm guessing you are talking about the Eastern Roman Empire, or the Byzantine Empire.
the Byzantine Empire a) remained strong for several centuries, until it fail to the Ottoman Turks at ~1346 ad
hope this helps
Answer:
ok what is the question plz
Answer:
the end of the Cold War. Because the Cold War was not ... During most of the latter half of the 20th century, the two most powerful states in the ... for a multipolar world as India, China, and Japan developed to a point where ... "Apple's Chinese
Explanation:
I am not so sure what you mean by "what kinds of unions were formed", but if you're talking about the Civil War then I think the unions were Confederate and Union. The Confederates wanted to run the country with slavery while the Union fought against slavery. Do not quote me on that though.