Why did the mayans create a detailed writing system?

to keep track of trade
to keep track of the seasons
to keep track of political rules
to keep track of families

The Mayans did it to keep track of political rulers which were records of a transfer of power. So the answer would be C.

the name of the theory is landmass theory.

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.