In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Taft's strong dissent in Adkins v. Children's Hospital suggested that this case should be overruled. The "era" that this case ushered in ended with a case that saw the notorious "switch in time to save nine," West Coast Hotel v. Parrish. Much of Rufus Peckham's opinion dealt with whether the law in question constituted a proper use of the police power. John Marshall Harlan's dissent in this case decried the Court's attempt to become a legislature, while Oliver Wendell Holmes's dissent stated that the fourteenth amendment does not enact Spencer's Social Statics. FTP, name this 1905 case which overturned a law concerning bakers' working hours.
History

Rosenheim and Callow developed a test in which a mixture of this compound and metal acetates are used to detect the presence of sterols. Millon's reagent is a solution of mercury in this substance and a similar substance, which turns red in the presence of phenolic compounds and is useful in detecting tyrosine residues. The commercial production of this compound begins with the combustion of ammonia using a platinum-rhodium catalyst; that process is the Ostwald process. For 10 points, identify this acid which is found with hydrochloric acid in aqua regia, and has chemical formula HNO3.
Science

Each one of these pieces features a violone or violone grosso which essentially mirrors the cello, and the tuning of said instruments for these pieces is debated. One of these requires the use of an Echo flute, and only the first one of them has four movements, the last of which contains a polonaise and is notable for featuring hunting horns. A slow harpsichord movement is inserted into the third one of these, and its final piece features a viola de gamba which was to be played by Prince Leopold. For 10 points, identify this collection of six instrumental pieces by J. S. Bach named after a German duchy.

Fine Arts