The building and expansion of the railway lines. Also,more people were coming to California,Nevada,and New Mexico.
Pretty much everyone except northeast . Because southeast there is Florida which is hot in summer and not that cold. Southwest it gets so hot and not really cold. Mid west does get very warm as well too
Electricals genertion machine steam engine improved upon or replaced
There was less land for Homesteaders, as the Homestead Act aimed to give settlers 160 acres of public land to encourage migration.
<span>It was a United States cabinet that was in charge of the operation and maintenance of the United States Army. The War Department existed from 1789, till 1947, when it was split into Department of the Army and Department of the Air Force and joined the Department of the Navy as part of the new joint National Military Establishment (NME). It was renamed US Department of Defence in1949.</span>