How did technological innovations enable urbanization and the horizontal and vertical growth of cities?

In 1073, the fight over who gets to choose bishops was between pope gregory vii and king henry the iv. t or f

Diarys letters and memoirs are good examples of what

Why might the spanish government have approved of the encomienda system? a the system allowed for fair treatment of all under it, leading to a happy and prosperous colony. b the system used natives as slaves which meant the government was able to maximize their profit of exported goods. c the system allowed for mostly profitable trade within the different colonies. d the system was a great example of how to successfully run a colony, making spain a world power.