There are two people who invented street lights, but the first one was built by Garret Morgan
Government corruption
Being the Roman emperor was a dangerous job. <span>Civil war thrust the empire into chaos, and more than 20 men took the throne in the span of only 75 years, usually after the murder of their predecessor. </span>
Most of the signs of prosperity that were misleading involved credit. There were so many consumer goods that had never been around before, and people bought a lot of them with credit, meaning they did not actually have the money. "Buying on the Margin" was the main cause of all this and led to the Great Depression. Before the stock market crash in 1929, around 90% of stocks people owned were bought with borrowed money. In short, people used way too much credit, meaning they had a lot of items signifying wealth, but they did not have the money to pay back banks, stock brokers, etc... much like modern day credit cards.
One of the main reasons why southern African Americans became more urbanized during the great migration period is because many of them sought work in cities, due to more job opportunities when compared to the farm-life in the South.