Why did most of the advisers who surrounded Johnson believe America had a duty to halt communism in Vietnam?

Which factor has played the most important role in changing the way history is studied over time?

The 1884 amendment added onto the chinese exclusion act included what additional stipulation? the law would apply to ethnic chinese regardless of which asian country they originated from. the law would provide newly arrived chinese immigrants with land in the oklahoma territory. the law would establish all chinese americans as permanent aliens and deny them citizenship. the law would prohibit chinese immigrants from reentering the united states once they exited.

How did the beliefs of the roman catholics differ from the eastern orthodox form of christianity?