People who opposed the ratification of the Constitution.
Immigration to the north provided workers for production and replacements for soldiers killed or wounded.
Answer:
To get workers rights and safety.
Explanation:
I don't see a list of answers, but this is something I'm learning about right now. The purpose of the formation of labor unions was mainly to increase the safety of the laborers. A lot of factories were built cheaply, so safety wasn't a prime concern for the owners. It was really all about the money for them. So the correct answer would be somewhere along the lines of to get laborers rights and safety. Hope this helped!
-Kirito
The Hagia Sophia is your answer. It was located in the Byzantine empire.