Why did Japan invade Manchuria?

Although a number of things brought about world war one there was one even that push to europe over the edge. what was that event?

Who issued the ruling for the supreme court? dred scott roger b. taney abraham lincoln john c. calhoun

How did government policies contribute to the beginning of the industrial revolution in great britain? o a. the british government passed laws that prevented any businesses outside the country from learning about manufacturing innovations. b. the british government established factories that produced industrial goods at low prices. c. the british government broke up joint stock companies to promote competition. d. the british government paid a large percentage of the wages earned by industrial workers.