The Treaty of Versailles was the Treaty ending WW1 placing all "war guilt" on Germany.
War guilt clause: Germany forced to accept blame for starting WW1
The rivers allowed a good system of communication between the tribes and they were a good source of food & transportation.
When Henry Ford revolutionized the automobile industry with the assembly line, it cut away man hours and effort needed to create product. This made production faster, easier, and cheaper.
Around 2,000 soilders doed due to diseases spreading around
