First Peoples were often warring with each other prior to the arrival of the Europeans. Especially in the Midwest Region

this isn't a question and if you're going to list things be kind and use commas.

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.

safaid was known as the most beautiful architecture