Question: Which was decided first, Selective Draft Law Cases or Katzenbach v. McClung?

Context paragraphs:
List of patent case law: This list contains an alphabetical listing of historically significant or leading case law in the area of patent law.  For a list of patent law cases in just the United States, see United States patent law cases.

Criminal law in the Taney Court: The Taney Court (1836–1864) heard thirty criminal law cases, approximately one per year.  Notable cases include "Prigg v. Pennsylvania" (1842), "United States v. Rogers" (1846), "Ableman v. Booth" (1858), "Ex parte Vallandigham" (1861), and "United States v. Jackalow" (1862).

Katzenbach v. McClung: Katzenbach v. McClung, 379 U.S. 294 (1964), is a United States Supreme Court case in which the Court unanimously held that Congress acted within its power under the Commerce Clause of the United States Constitution in forbidding racial discrimination in restaurants as this was a burden to interstate commerce.

Forensic engineering: Forensic engineering is the investigation of materials, products, structures or components that fail or do not operate or function as intended, causing personal injury or damage to property.  The consequences of failure are dealt with by the law of product liability.  The field also deals with retracing processes and procedures leading to accidents in operation of vehicles or machinery.  The subject is applied most commonly in civil law cases, although it may be of use in criminal law cases.  Generally, the purpose of a forensic engineering investigation is to locate cause or causes of failure with a view to improve performance or life of a component, or to assist a court in determining the facts of an accident.  It can also involve investigation of intellectual property claims, especially patents.

List of United States patent law cases: This is a list of notable patent law cases in the United States in chronological order.  The cases have been decided notably by the United States Supreme Court, the United States Court of Appeals for the Federal Circuit (CAFC) or the Board of Patent Appeals and Interferences (BPAI).  While the Federal Circuit (CAFC) sits below the Supreme Court in the hierarchy of U.S. federal courts, patent cases only have the right of appeal to the Federal Circuit.  The U.S. Supreme Court will only review cases on a discretionary basis and rarely decides patent cases.  Unless overruled by a Supreme Court case, Federal Circuit decisions can dictate the results of both patent prosecution and litigation as they are universally binding on all United States district courts and the United States Patent and Trademark Office.

Selective Draft Law Cases: Arver v. United States, 245 U.S. 366 (1918) , also known as the Selective Draft Law Cases, was a United States Supreme Court decision which upheld the Selective Service Act of 1917, and more generally, upheld conscription in the United States.  The Supreme Court upheld that conscription did not violate the Thirteenth Amendment's prohibition of involuntary servitude, or the First Amendment's protection of freedom of conscience.

Forensic pathology: Forensic pathology is pathology that focuses on determining the cause of death by examining a corpse.  A post mortem is performed by a medical examiner, usually during the investigation of criminal law cases and civil law cases in some jurisdictions.  Coroners and medical examiners are also frequently asked to confirm the identity of a corpse.  Also see forensic medicine.

Criminal law in the Marshall Court: The Marshall Court (1801–1835) heard forty-one criminal law cases, slightly more than one per year.  Among such cases are "United States v. Simms" (1803), "United States v. More" (1805), "Ex parte Bollman" (1807), "United States v. Hudson" (1812), "Cohens v. Virginia" (1821), "United States v. Perez" (1824), "Worcester v. Georgia" (1832), and "United States v. Wilson" (1833).

Against degradation of education: Against degradation of education campaign - All-Ukrainian civil campaign to prevent the adoption of draft laws of Ukraine "On higher education" #7486-1, 9655 and 1187, which took place from 2010 to 2013.  Since June 2013 campaign also started to oppose the adoption of draft law #2060a which could significantly decrease the value of External independent evaluation ("EIE protection" campaign).  It resulted in the failure to adopt all these laws and adoption of draft law #1187-2 after the victory of Euromaidan in 2014 which was developed by civil activists.

Selective Service Act of 1917: The Selective Service Act or Selective Draft Act (Pub.L.  65–12 , 40 Stat.  76 , enacted  18, 1917 ) authorized the federal government to raise a national army for the American entry into World War I through the compulsory enlistment of people.  It was envisioned in December 1916 and brought to President Woodrow Wilson's attention shortly after the break in relations with Germany in February 1917.  The Act itself was drafted by then-Captain (later Brigadier General) Hugh S. Johnson after the United States entered World War I by declaring war on Germany.  The Act was canceled with the end of the war on November, 1918.  The Act was upheld by the United States Supreme Court in the "Selective Draft Law Cases" in 1918, a decision based partially on Vattel's "The Law of Nations" of 1758.

Supporting paragraphs: Selective Draft Law Cases Katzenbach v. McClung
Answer: Selective Draft Law Cases