The coastal migration hypothesis suggests that people managed to get to the Americas not through the Bering Ice Bridge, but along side the coastline and the Kurile island chain. Also this hypothesis suggests that people managed to enter the Americas earlier than thought, and this is also supported by few archaeological findings, including ones in Chile, Florida, and close to the coast of California.
I'm literally learning this now in APUSH. In 1914 which is the era of the gilded age people were dependent on railroads and oil. Thanks to help from Carnegie (and the other 4 men) (around 1914) and steel, the US economy rose back from its divided chaos.
Andrew Jacksons mother traveled to Charleston to aid the war effort by nursing injured and sick soldiers. Tragically, while there, she contracted cholera and died, leaving Jackson an orphan at the young age of 14.