What events after wwi led the u. s. to join wwii?

the main reason that the constitution did not proclaim all men to be free and equal is because of the issue of slavery.

1. it was caused by feudalism

2. charlemagne used christianity as a major cornerstone for his rule. cloisters were built all over the empire to act as centers for the (re)population of the vast european wilderness.

3. the europeans feared the next raid every time chetak

i'm not so sure about #6. but i hope i you with the first 3.