Disease and violence from other groups
The rise of the middle class came from two different groups of people, upper class families were one becuase of the amount of money it took to become a succesful merchant/ trader. The other group was merchants from the lower class who were often looked down upon but because of their succes in their respective guilds they were brought together. The middle class grew in importance due to the fact that there was a significant growth in the number of towns. The rise of the middle class created a merchant class, responsible for the growth of cities, increased trade, and lifted people from the lower class.
Answer: He created the concept of the "kindergarten".
Explanation: He created the concept of the "kindergarten" and coined the word, which soon entered the English language as well. He also developed the educational toys known as Froebel gifts.
Okie so I can have internet connection and then I can
That is difficult, I'm not exactly sure what the context is but... I would answer with the Nile River