Question: What did John T. Thompson invent and lend his name to, a notorious feature of the Prohibition era that earned nicknames including the "Chicago Typewriter" and "Trench Sweeper"?
Context: Many Army divisions have over the years earned nicknames; some laudatory, some derogatory, but mostly colorful.  Sometimes, the nicknames themselves have overshadowed the actual name of the division, e.g. the "Screaming Eagles" for the 101st Airborne Division. Davorin Popović (23 September 1946 – 18 June 2001) was a Bosnian musician, well known throughout the former Yugoslavia.  He was the lead singer and frontman of the progressive and pop rock band Indexi throughout most of their career.  He and his band "Indexi" became founders of specific music style in former Yugoslavia known as "Sarajevo pop-rock school" who later influenced other bands and singers in Sarajevo and other parts of Yugoslavia.  Personally, he was popularly associated with the 1960s bohemian lifestyle of Sarajevo.  In his youth, he was a successful basketball player.  During his career, he earned nicknames like "Pimpek", "Davor", "Dačo" or simply "Pjevač" ("The Singer") due to his unique voice. Many regiments have over the years earned nicknames; some laudatory, some derogatory, but all colourful.  Sometimes, the nicknames themselves have overshadowed the actual regimental title, e.g. the "Van Doos" for the Royal 22 Régiment.  In some cases the nickname actually replaced it: in 1881, the 42nd (Royal Highland) Regiment of Foot became officially known by its nickname, The Black Watch. The Thompson submachine gun is an American submachine gun, invented by John T. Thompson in 1918, that became infamous during the Prohibition era.  It was a common sight in the media of the time, being used by both law enforcement officers and criminals.  The Thompson submachine gun was also known informally as the "Tommy Gun", "Annihilator", "Chicago Typewriter", "Chicago Piano", "Chicago Style", "Chicago Organ Grinder", "Trench Broom", "Trench Sweeper", "The Chopper", and simply "The Thompson". Go Kyung-pyo (; born June 11, 1990) is a South Korean actor and comedian.  He gained recognition for his role in the television series "Reply 1988" (2015–16) and has since starred in "Jealousy Incarnate" (2016) and "Chicago Typewriter" (2017).  Go starred in his first leading role in KBS2's "Strongest Deliveryman" in August 2017. The first season of the HBO television series "Boardwalk Empire" premiered on September 19, 2010 and concluded on December 5, 2010, consisting of 12 episodes.  The series was created by Terence Winter and based on the book "Boardwalk Empire: The Birth, High Times and Corruption of Atlantic City" by Nelson Johnson.  Set in Atlantic City, New Jersey, during the Prohibition era, the series stars Steve Buscemi as Enoch "Nucky" Thompson (based on the historical Enoch L. Johnson), a political figure who rose to prominence and controlled Atlantic City, New Jersey, during the Prohibition period of the 1920s and 1930s.  The first season takes place between January and November 1920, beginning with the start of national prohibition and ending with the 1920 presidential election. John Taliaferro (pronounced "tolliver") Thompson (December 31, 1860 – June 21, 1940) was a United States Army officer best remembered as the inventor of the Thompson submachine gun. Chicago Typewriter () is a 2017 South Korean television series starring Yoo Ah-in, Im Soo-jung and Go Kyung-pyo.  It premiered on April 7, 2017, with episodes every Friday and Saturday at 20:00 (KST) on tvN. Peter D'Rohan Hoffmann (born 14 January 1972) is an Australian-Portuguese rugby union referee and former international player for Portugal.  He played as a fly-half and a fullback.  One of the best Portuguese players of his generation, he earned nicknames like "Zé Rohan" and "Mister Canguru". William Valentine "Bill" Shakespeare (September 27, 1912 – January 17, 1974) was an American football player.  He played at the halfback position, and also handled punting, for the Notre Dame Fighting Irish football teams from 1933 to 1935.  He gained his greatest acclaim for throwing the winning touchdown pass as time ran off the clock in Notre Dame's 1935 victory over Ohio State, a game that was voted the best game in the first 100 years of college football.  Shakespeare was selected as a consensus first-team All-American in 1935 and was posthumously inducted into the College Football Hall of Fame in 1983.  Sharing the same name as "The Bard of Avon", Shakespeare earned nicknames including "The Bard of Staten Island", "The Bard of South Bend", and "The Merchant of Menace."
Answer: Thompson submachine gun