Final answer:
The correct match for the fact 'increased southern voting strength' is the Fifteenth Amendment
Step-by-step explanation:
The correct match for the fact 'increased southern voting strength' is the Fifteenth Amendment. The Fifteenth Amendment, ratified in 1870, granted African American men the right to vote and aimed to increase the voting strength of the southern states, particularly among the newly freed slaves after the Civil War.
Match the facts with the names:
_ Increased Southern voting strength: Fifteenth Amendment
_ Attempt to return Southern states to the Union: Reconstruction
The correct match for the fact 'increased southern voting strength' is the Fifteenth Amendment