What latitude was chosen as the dividing line between slave and free states

In ohio in 1872, the cleveland massacre was a violent labor dispute at standard oil refineries in cleveland. a takeover by standard oil of the refineries in cleveland. an attempt to stop standard oil from becoming a monopoly. a failed attempt by standard oil to take over other refineries.

What practical concern lay behind the promotion of longitudinally planned churches in 17th-century rome? a) allowing the circulation of pilgrimsb) interior lighting of the navec) support for the heavy domed) accommodating parishioners

Which of these statements describes the relationship between urbanization and the divison of labor during the bronze age?