It started September 1, 1939 and ended September 2nd, 1945
The major physical feature that the pioneers crossing West had to contend with were the Rocky and Sierra Nevada Mountains.
These mountain ranges were treacherous and many died trying to find passages to cross.
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The antiwar protests at Kent State took place on May 4, 1970. The students were protesting the Vietnam War. During the protests, the Ohio National Guard opened fire on the protestors and killed four students. Nine other students were injured. After the incident, a student-led strike closed many college campuses across the country.