The Black Death<span>. ... Contemporary chronicles </span>tell<span> of eruptions of violence, “Christians massacred Jews</span>
The USA's last trade surplus was in 1975.
They wouldn't help them with what they needed so they decided to stop
Adam Smith's idea of the division of labor helped Henry Ford create an efficient assembly line because this theory actually started the specialization of jobs. A single person becomes specialized in a small part of a job. This increased the efficiency of the person and the quality of the end product.
