In 1916, Wilson nominated Louis Brandeis, a staunch progressive who had fought in court against the exploitation of women and children workers, to the Supreme Court. He was the first Jewish justice on the Court. Following Brandeis's nomination, Wilson supported improved credit for farmers and workers' compensation for federal employees. He then pushed through a law to eliminate child labor, but the Supreme Court ruled it unconstitutional in 1918. When American railroad unions threatened to strike in 1916, Wilson supported and signed into law a bill securing an eight-hour workday for railroad employees—the Adamson Act, which paved the way to shortened workdays for all industrial workers.