Margarine and butter are examples of substitutes.
Answer: In addition, because of the American Revolution is that in 1783 the treaty of Paris stated that America was independent fro Britain. And also caused in 1776 the declaration of independence that people have certain rights the government couldn't take away
Explanation:
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
I think it is sponsorship, or the government
