The answer is number 3: Calling for all Confederate slaves to be freed.
The Emancipation Proclamation, issued on January 1, 1863, was an executive order from the President to emancipate all the slaves in the states that hadn't ended its rebellion against the Union, that is to say, the Confederate states.
<em>"(...) all persons held as slaves within any State or designated part of a State the people whereof shall then be in rebellion against the United States shall be then, thenceforward, and forever free"</em>
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Answer:
Civil Rights Movement
Explanation:
Between 1945 and 1952, CIVIL RIGHT MOVEMENT was one way in which black Americans gained more rights. This was evident in the threatened mass march on Washington by an African American labor leader Phillip Randolph that resulted in President Franklin Roosevelt carrying out an executive order that prohibited discrimination in the military.
Similarly, the National Association for the Advancement of Colored People (NAACP) through the civil rights movement gained some victories at the Supreme Court level in their fight for colored people's rights. In many cases, they mobilized various organizations across the country to force the hand of Congress to pass civil rights legislation.
Another example is the work of the civil rights activists such as Bayard Rustin and George House.
Hence, in this case, the correct answer is "Civil Rights Movement"