paragraph_text: The M-1978 Koksan is a 170 mm self-propelled gun of North Korean design and manufacture. Very little information is available due to the secretive nature of the North Korean government. The designations "M-1978" and "Koksan" were given to the type by American military analysts, as they first became aware of it in that year in Koksan, North Korea.

paragraph_text: "Good Woman Blues" is a song written by Ken McDuffie and recorded by American country music artist Mel Tillis. It was released in September 1976 as the second single from the album "Love Revival". "Good Woman Blues" was Mel Tillis' second number one on the country chart. The single stayed at number one for two weeks and spent a total of twelve weeks on the country chart.

paragraph_text: In director Yoon Jong-bin's own words, the film "depicts youths living in the exotic, affluent backdrop of Gangnam and those kicking and screaming to survive in the superficial, capitalistic society."

paragraph_text: Split is a 1971 blues rock studio album recorded by The Groundhogs, originally released by Liberty Records in 1971 with catalogue number LBG 83401. It was reissued on CD reissue in 2003 by Liberty / EMI Records, with catalogue number 07243-584819-2-1.

paragraph_text: Travelling the EU is a European EP released by Kevin Devine. It was initially released in 2003 through Defiance Records as a limited CD and 7" and later became available through digital retailers. Both physical versions are now out of print. The EP features early versions of "Haircut" and "Probably", which would later be featured on Kevin's third album, Split the Country, Split the Street. The version of "Probably" featured on this EP was also released on the Beer: The Movie soundtrack.

paragraph_text: Lee Min-ho (Korean: 이민호; Hanja: 李敏鎬, born June 22, 1987) is a South Korean actor and singer. He first gained widespread fame in Korea and parts of Asia with his role as Gu Jun-pyo in Boys Over Flowers in 2009. The role won him a Best New Actor award at the 45th Baeksang Arts Awards. He is noted for his leading roles in City Hunter (2011), The Heirs (2013) and Legend of the Blue Sea (2016). The success of Lee's television dramas throughout Asia established him as a top Hallyu star. Lee starred in his first leading role in film with Gangnam Blues (2015), followed by his first China-produced film Bounty Hunters (2016).

paragraph_text: This article deals with historic administrative divisions of Czechoslovakia up to 1992, when the country was split into the Czech Republic and Slovakia and the divisions were changed.

paragraph_text: Cheongdam-dong 111 () is a reality show aired by South Korean television channel tvN between November 21, 2013 and January 9, 2014 about the daily life and inner workings of FNC Entertainment, a record label and talent agency. The title of the show reflects the agency's location in Cheongdam-dong, Gangnam-gu, Seoul.

paragraph_text: "Blue Highway" is a song written by David Womack and Don Henry, and recorded by American country music artist John Conlee. It was released in July 1985 as the third single and title track from the album "Blue Highway". The song reached #15 on the "Billboard" Hot Country Singles & Tracks chart.

paragraph_text: The Seongsu Bridge is a bridge over the Han River in Seoul, South Korea. The bridge links the Seongdong and Gangnam districts. The cantilever bridge was completed in 1979 and its total length is 1160 m. It became infamous when it collapsed on October 21, 1994.

paragraph_text: The subsequent Korean War, which lasted from 1950 to 1953, ended with a stalemate and has left the two Koreas separated by the Korean Demilitarized Zone (DMZ) up to the present day.

paragraph_text: "How Long, How Long Blues" (also known as "How Long Blues" or "How Long How Long") is a blues song recorded by the American blues duo Leroy Carr and Scrapper Blackwell in 1928. The song became "an instant best-seller" and one of the first blues standards, inspiring many blues songs of the era. It has been recorded by many artists, not only in blues but also country and western, pop, and jazz.

paragraph_text: Lieutenant Colonel Edward Akroyd (1810–1887), English manufacturer, was born into a textile manufacturing family in 1810, and when he died in 1887, he still owned the family firm. He inherited "James Akroyd & Sons Ltd." from his father in 1847, and he became the owner of one of the country's largest worsted manufacturers.

paragraph_text: Suseo-dong is a ward of Gangnam-gu in Seoul, South Korea. The name, "Suseo" originated from the feature of Han River running through the western part of the region. Suseo-dong is also home to the Tancheon park.

paragraph_text: In June 2013, Serotta merged with Blue Competition Cycles and Mad Fiber Wheels under the name of Divine Cycling Group. In July 2013, Serotta ceased manufacturing bicycles.

paragraph_text: Mule was an American punk blues band from Michigan, active in the early 1990s. Formed from the ashes of Wig and Laughing Hyenas, their music incorporated elements of hardcore punk, blues-rock, and alternative country.

paragraph_text: "Gangnam Blues" was released in 684 theaters in South Korea on January 21, 2015. Despite its "restricted" rating, it topped the box office on its opening day, with 152,500 tickets sold. Within 5 days, it had reached the 1 million admission mark (1,097,103). After 35 days of release, the film recorded 2.19 million admissions.

paragraph_text: The Mustangs are a British blues rock band that was formed in Hampshire in 2001. Signed to the Skyfire Records label, they have released 11 albums, including "Split Decision", which reached number 5 on the iTunes blues chart. They are unusual on the blues rock circuit as their albums are made of entirely original material. The Mustangs were nominated for Best Band at the 2010 British Blues Awards. The band's drummer, Jonathan Bartley, is co-leader of The Green Party of England and Wales. They are regarded as one of the most long-running and established bands on the UK blues rock circuit.

paragraph_text: Sinnonhyeon Station is a railway station on Line 9 of the Seoul Subway located by the Kyobo Tower sageori in Nonhyeon-dong, Gangnam-gu, Seoul. It was the southern terminus of Line 9 from 2009 to March 2015, when the line was extended to Sports Complex Station. Gangnam Station and Nonhyeon Station are near here. It will become a transfer station to the Shinbundang Line in 2022.

paragraph_text: The company was the first-ever domestic manufacturer of floppy diskettes in India. In a short span of time, Amkette gained a strong name in the Indian market due to Bapna’s strong focus on precision manufacturing, customer service and distribution policies. Rajiv Bapna is also responsible for creating one of the largest IT distribution networks in the country.

Question: When did the manufacturer of Koksan split from the Gangnam Blues country?
Answer: 1953