They adopted Christianity because it was the same religion as they're European masters at the time.
It provided free and safe travel across the Silk Road, it isolated Russia, and helped spread the bubonic plague
By definition the difference between a confederation and a federation is that the membership of the member states in a confederation is voluntary, while the membership in a federation is not. Sometimes confederation is erroneously used in the place of federation. Hope this helps,
They wanted to establish an independent country. They were tired of being under England's rule and wanted more freedom.
Well, if these people are not satisfied, they can have two ways, either to be part of a union and make strikes and disaster, or second, to write a letter to the government explaining how they feel, and they should make sure the letter is signed by a notary, then it will have more importance.