Yes that's true. As the first president he set precedents for future presidents, for example the title "Mr. President," having dinner parties, having a maximum of two terms.
The treaty of versailles caused WWII.
I think is the Nullification crisis and the war he fought.
1. this answer is correct. hope this helps :)
He wanted to expose the working conditions in the meat packaging industry he explained how the meat had diseases , how it was rotten and contaminated he wanted for the people to be aware of everything <span />