Which of the following are identified in a social contract? Check all of the boxes that apply The specifics of government's laws
The rights and responsibilities of citizens
The structure of government
The rights and responsibilities of rulers

four sitting presidents have been assassinated while in office but the first was abraham lincoln,

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

the federal constitution of the united mexican states of 1824 was enacted on october 4 of 1824, after the overthrow of the mexican empire of agustin de iturbide. in the new constitution, the republic took the name of of united mexican states. it was replaced by the federal constitution of the united mexican states in 1857.