Did nationalism have a positive or negative effect on Ottoman Empire? Why?

What form of government is powers of states?

Who were the only people that were not allowed to be a citizen in the roman empire

Plz ! after the first battle of bull run general ivan mc dowell was removed from command of the union army he was replaced by a. general ulysses s. grant. b. general george mcclellan. c. general robert e lee. d. general george meade.