Which event led the united states to declare war on germany during world war i?

syria

tens of thousands of people were killed in as it’s longtime leader attempted to stay in power.

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.