The treaty of Versailles was a bad idea. It benefited countries like Britain, France and America as they where the top powers to come out of the war. It blamed all of the damages caused to their countries squarely on the Germans simply because Germany was the best target. The German where forced to surrender all their foreign lands. They where forbidden from entering the Rhineland. They where forbidden from uniting with Austria. They where forced to pay reparations to the winning side after the war, leaving the German people and the Wiemar republic in poverty! If it wasn't for all these terms suppressing Germany, Hitler would never pushed the boundaries of the treaty, the Nazi's where unlikely to ever rise to such power as they where elected as a last hope when Germany lost faith in democracy and therefore Britain would not have had to declare war on Germany for taking over Poland and Slovakia, entering the Rhine and uniting with Austria. It is often said that WW1 was just a build up to world war two, as if it wasn't for the treaty of versailles none of this was ever going to or even had a possibility f happening.
D . All the above
This is why he has been kept out of most history.
Railroad technologies
City planners saw a great promise in railroad technologies in resolving the problems facing public transports. As a result, railway transport was immensely integrated into several city public transport systems.
There are actually two reasons why Napoleon did so. One was because he knew that if he had held on to it, the United States would start a conflict, and he didn't want that to happen. Also, this is the most important reason, by him helping the United States, and him helping the French treasury at the same time, Napoleon was able to create a world with so much power, that he was able to challenge Britain.