What is a characteristic of the high Middle Ages in the twelfth century

A period during 11th, 12th and 13th centuries in Europe characterized by rapid population growth which brought about great social and political change. The population grew from 38 million to 74 million.

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.