What is the black stones commentaries on the law

William Blackstone (1723-1780) is an English lawyer, author of "Commentaries to the Laws of England" (1765 – 1769), which is considered the best statement of the doctrine of Anglo-Saxon law. This work, created on the basis of the first lecture course on English law, became the basis for the University of Legal education.

a. favoring native born americans over immigrants.

the main objectives of the progressive movement were eliminating problems caused by industrialization, urbanization, immigration, and political corruption.