I believe prehistory was the time before the humans (such as prehistoric times where there were dinosaurs) and historic times mean when humans were walking the earth
<em>Friar Juan de Padilla</em>, born in Andalusia – Spain, was a Catholic missionary who spent much of his life exploring North America working so that native tribes had the opportunity of knowing and serving Christ, establishing the first Christian mission in Kansas.
During a missionary trip to north-east territories, he was reached for a group of native savages, who <em>attacked and kill him</em> while he was knelt in prayer, throwing afterward his body into a mine whose location remains uncertain.
Manifest destiny - The idea to spread “from sea to shining sea” ( east to west)
This also ties with imperialism
Hope this helps!