Hey there!
Similarites- Organized Government, Food supply
Differences- Labor, and paganism
Hope this helps!
Mainly, it was the help of the apostles, like Paul and Peter. They spread the news into the roman Empire, and people like Cornelius believed.
Honestly, none. The union didn't really have any agricultural advantages over the Confederacy, in fact, it can be argued that agriculture was one of the biggest disadvantages of the union.
