What began on february 1st, 1917? how could this impact the united states?

Bergman Hollweg went before the German Reichstag government and announced that submarine warfare would resume that next day feb 1

Ifound this on google “simply, the working conditions were terrible during the industrial revolution. as factories were being built, businesses were in need of workers. with a long line of people willing to work, employers could set wages as low as they wanted because people were willing to do work as long as they got paid.” i hope this you for what your looking for.

Idon’t know who knows but i know who does not know me