answers: 15 June 1934
context: national monument in 1908 by President Theodore Roosevelt, and was redesignated as a national park by Congressional legislation in 2012 that was then signed into law by President Barack Obama on January 10, 2013. Native Americans in the Pinnacles region comprised the Chalon and Mutsun groups of the Ohlone people, who left stone artifacts in the park. These native people declined with the arrival of the Spanish in the 18th century, who brought novel diseases and changes to the natives' way of life. The establishment of a Spanish mission at Soledad hastened the area's native depopulation through disease and dispersion. </s> purchasing agent for the park, which was officially established on 15 June 1934. During the Great Depression, the Civilian Conservation Corps, the Works Progress Administration, and other federal organizations made trails, fire watchtowers, and other infrastructure improvements to the park and Smoky Mountains. It was also a site for filming of parts of Disney's hit 1950s TV series, "Davy Crockett, King of the Wild Frontier". This park was designated an International Biosphere Reserve in 1976, was certified as a UNESCO World Heritage Site in 1983, and became a part of the Southern Appalachian Biosphere Reserve in 1988. A 75th anniversary </s> Great Smoky Mountains National Park Great Smoky Mountains National Park is an American national park and a UNESCO World Heritage Site that straddles the ridgeline of the Great Smoky Mountains, part of the Blue Ridge Mountains, which are a division of the larger Appalachian Mountain chain. The border between Tennessee and North Carolina runs northeast to southwest through the centerline of the park. Great Smoky Mountains is the most visited national park in the United States with over 11.3 million recreational visitors in 2016. The Appalachian Trail passes through the center of the park on its route from Maine to
question: when did the smoky mountains became a national park