¿Cuál fue el efecto del liderazgo de John Smith en la colonia?

Ahistorian studying urban history in chicago in in the early 1900's. she is studying the population changes and the activities that people did in their everyday lives. based on the description which school of thought does the historian likely belong to

Complete the square for 3x2 - 12x = 9.

Which was the cause of the rise of the persian empire?