Immigrants desired to come to the United States in order to obtain better job opportunities, and escape ongoing wars in their homeland. (Might not be the best, just kinda thought of it on the spot)
<span>During the Middle Ages, merchants, artisans, and their guilds contributed to the
rise of towns. They helped accumulate wealth, then would pay taxes, then the cities would grow. They were of high importance for the creation of large cities.</span>