It was also one of the best planned and most diverse of such preindustrial cities because migrants of different ethnicities streamed in following the eruptions of two volcanoes in southern Mexico that made their own homes less desirable.

同时它也是前工业化城市中最具规模且最具多样性的城市之一因为不同种族的移民在自己的家园遭墨西哥南方两座火山喷发毁灭之后蜂拥来此定居。