I have an essay to do, it is due on monday and I would like some help about where to find information about it, or just direct information.

To what extent and for what reasons did the policies of the government from 1865-1900 violate the policies of laissez-faire, which advocated minimal governmental intervention in the economy? consider with specific reference to the following areas of policy: railroad land grants, control of interstate commerce, and anti trust activities.

thanks