of South Korean singer Psy, when he became an instant international musical sensation as his song "Gangnam Style" topped global music charts in 2012. Since the success of the film Shiri in 1999, the Korean film industry has begun to gain recognition internationally. Domestic film has a dominant share of the market, partly because of the existence of screen quotas requiring cinemas to show Korean films at least 73 days a year. 2019's Parasite, directed by Bong Joon-ho, became the highest-grossing film in South Korea as well as the first non-English language film to win Best Picture at the United States-based Academy Awards that year amongst numerous other accolades. South Korean television shows have become popular outside of Korea. South Korean television dramas, known as K-dramas, have begun to find fame internationally. Many dramas tend to have a romantic focus, such as Princess Hours, You're Beautiful, Playful Kiss, My Name is Kim Sam Soon, Boys Over Flowers, Winter Sonata, Autumn in My Heart, Full House, City Hunter, All About Eve, Secret Garden, I Can Hear Your Voice, Master's Sun, My Love from the Star, Healer, Descendants of the Sun, Guardian: The Lonely and Great God and Reply (TV series) . Historical dramas have included Faith, Dae Jang Geum, The Legend, Dong Yi, Moon Embracing the Sun, Sungkyunkwan Scandal, Iljimae and Kingdom. The 2021 survival drama Squid Game, created by Hwang Dong-hyuk, received critical acclaim and widespread international attention upon its release, becoming Netflix's most-watched series at launch and garnering a viewership of more than 142 million households during its first four weeks from launch. Holidays There are many official public holidays in South Korea. Korean New Year's Day, or "Seollal", is celebrated on the first day of the Korean lunar calendar. Korean Independence Day falls on 1 March, and commemorates the 1 March Movement of 1919. Memorial Day is celebrated on 6 June, and its purpose is to honor the men and women who died in South Korea's independence movement. Constitution Day is on 17 July, and it celebrates the promulgation of Constitution of the Republic of Korea. Liberation Day, on 15 August, celebrates Korea's liberation from the Empire of Japan in 1945. Every 15th day of the 8th lunar month, Koreans celebrate the Midautumn Festival, in which Koreans visit their ancestral hometowns and eat a variety of traditional Korean foods. On 1 October, Armed Forces day is celebrated, honoring