The second one, Bolsheviks and anti-tsarists
The rights of African Americans to vote was passed at the 15th amendments. However these rights were fully secured the passage of Voting Rights Act of 1965.
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Voting Rights Act of 1965</h3>
The Voting Rights Act of 1965 is the legal framework passed by the US legislature which prohibits racial discrimination in voting.
Prior to the passage of this right certain discriminatory voting practices were used mainly in the southern states such as literacy test to prevent African Americans from voting. These events happened after the civil war.
Learn more about the voting rights at brainly.com/question/744348
During World War II, the United State had a strong battle against Japan because of early attacks like Pearl Harbor. In the last year of the war, the US found a way to deciphered code messages from Japan. Thanks for the cryptographers that the US had, they were able to decipher around 90,000 words regarding their plans.
Thanks to this, the US was able to know Japanese plans and defend themselves for any Japanese attack before they could even strike.