The reason they went to war is when the Athens interfered in Persian affairs.
About 25% of Americans were out of work.
1. Cyrus McCormick
2. Sewing Machine
3. Samuel Morse
4. Eli Whitney
5. Cotton Spindle
6. Cotton gin
7. Charles Goodyear
8. John Deere
9. Francis Lowell
What are the options to chose from
B. They let the local leaders become too powerful, they eventually got attacked from the east, west, and north. I hope this helps :)