Nhiều đoạn đê ngăn mặn từ thời Lê đến nay vẫn thường được nhân dân gọi là

mass production/ assembly line production

answer; ///(1) blank; henry clay; (2) blank; secretary of state; (c)is your answer; ///good luck

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.