Which type of resource are newspaper accounts written at the time an event occurred?

nativists tried to get rid of the immigrants as they thought they were going to ruin the u.s.  

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.