The Bonus Army was comprised of veterans from World War 1 who were promised a bonus of around $1.25 for every day they served. When the depression hit, the veterans wanted congress to give them the bonus they had promised but congress denied them. They marched to protest and demand their bonus becasue they had nothing left and no where else to go.
Solon (around 590 BC), Cleisthenes (508 BC), and Ephialtes (462 BC) contributed to the development of democracy. Usually, the establishment of democracy attributed to Cleisthenes, since the laws of Solon were <span>abolished</span> by Pisistratus and Ephialtes just improved some settings of Cleisthenes.
I'm greek, so I hope I've helped you.
The book was called "Mein Kampf" Hope this helps ;)
All of these statements are correct.