How was America in the 1950s an era of both unprecedented security and tremendous anxiety

How might the first nations have reacted when they saw that the europeans were moving onto their lands and disrupting their way of life? (this was when the europeans came to canada and tried to claim land to themselves)

Which of these was an accomplishment of the han dynasty? the invention of the seismograph finding a water passage to europe the invention of the ballpoint pen the invention of the abacus

What event caused france and napoleon to want to get rid of its louisiana territory in north america? a) civil war b) seven years war c) slave revolt in haiti d) the french and indian war