The Nevada Legislature didn’t pass a law permitting for open till 1931 in an effort to enhance revenues for regional governments struggling to recover from the Good Depression. https://realgamble.us/%EB%A9%94%EC%9D%B4%EC%A0%80%EC%82%AC%EC%9D%B4%ED%8A%B8-%EC%95%88%EC%A0%84-%EB%B3%B4%EC%9E%A5-%EC%98%A8%EB%9D%BC%EC%9D%B8-%EC%B9%B4%EC%A7%80%EB%85%B8%EC%9D%98-%EC%8B%A0%EB%A2%B0%EC%84%B1%EA%B3%BC/