The Great Depression
Characteristics: the Bonus Army was a Hooverville made up of many war veterans who were forced to live in Hoovervilles due to not having much money. A conflict erupted when the president called the police to clear out the area.
Significance: these Hoovervilles sent a message to people, showing what could happen if the entire country became indebted, forced out of their homes and forced to seek other shelter. Luckily, an event of this magnitude has not happened since the Great Depression, and although their are still groups who live in Hoovervilles, the majority of people have righted themselves financially and don't have much fear of this. Additionally, the government has created laws where a blank can't get shut down if it doesn't pay back all of the money, so people don't have to worry about banks foreclosing as much.