Football is a popular sport for high schools in the United States. The National Federation of State High School Associations (NFHS) was founded in 1920 as an umbrella organization for state-level organizations that manage high school sports, including high school football. The NFHS publishes the rules followed by most local high school football associations. More than 13,000 high schools participate in football, and in some places high school teams play in stadiums that rival college-level facilities. For example, the school district serving the Houston suburb of Katy, Texas opened a 12,000-seat stadium in 2017 that cost over $70 million to host the district's eight high school teams. The growth of high school football and its impact on small town communities has been documented by landmark non-fiction works such as the 1990 book "" and the subsequent fictionalized film and television series.