Answer:
The main difference between them was that Athens focused on the sea while Sparta focused on the land. Spartan boys went into training when they were only 7 years old. Every man had only one occupation and that was the soldier. They were a fierce and unmatched fighting force in Greece at the time but only on land. On sea Athens dominated with its superior navy with a ship design called the Trireme. It was a lot more powerful in battel than previous ships at the time.
Cuban Missile Crisis? Maybe.
Profession of faith
Prayer
Alms
Fasting
And Pilgrimage
If you're referring to the Civil War era, in the years leading up to the war, once such compromise could have been that slavery could continue to exist where it was, but not spread to other states.
Homo sapiens migrated out of Africa about 60,000 years ago