But they never fully conquered the germanic tribes taht lived in the lands

because other regions has other things that egypt doesnt have.

studies show tha in 7.5 billion years from now, the expanding sun will engulf, and destroy, the earth.

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.