What methods were commonly used by Renaissance artists?

Why is it useful for historians to base certain studies on the analysis of historical themes

The formation of business monopolies in the late 1800s was made possible by the (1) effects of laissez-faire policies (2) passage of federal antitrust laws (3) elimination of the free-enterprise system (4) adoption of socialist economic practices

How does fortas defend the majority decision that free speech in school is constitutionally protected