Abolitionists reached the most people via abolitionist NEWSPAPERS.
Pretty sure Francis Scott Key wrote it.
However, I can't find who first sung it but I know that Charley Pride was the first to sing it at a Super Bowl.
Hope this is helpful, have a good one.
Answer:
jobs
Explanation:
war always brings an economic influx in jobs.
The American soldiers were rested and brought energy to the Allies. The spirit of the Allied soldiers improved significantly. Unites States industries produced much-needed supplies for the Allies. Military equipment and food were provided to assist the Allies in their fight against the Central Powers.