It influence d the Western World because Americans took the democarcy as freedom.
What was common is that they were both fought as plans of Lee to move the fighting no Northern Parts of the federation. Antietam ended in a draw, while Gettysburg became a victory for the Union.
1. Shantytown of the unemployed/homeless
A Hoovervilles were built during depression time for homeless people during the 1930s.
2. First woman in a Presidents cabinet
Frances Perkins is a American worker who works for the American workers-rights advocate. But also known to be The very first person to serve as a Presidents cabinet.
I hope this helped and was right, have a nice day.
I’m pretty sure using steel however the project got delayed by two years