Question: An early style of Blues music originated in a region that some people call, "The most southern place on Earth", what is the name of that region?

full_context: Document 1: Mississippi's 2nd congressional district: Mississippi's 2nd congressional district (MS-2) is the only majority-black district in the state, covering much of western Mississippi. The district includes most of Jackson, the riverfront cities of Greenville and Vicksburg, and the interior market cities of Clarksdale, Greenwood, and Clinton. The district is approximately 275 mi long, 180 mi wide and borders the Mississippi River; it encompasses much of the Mississippi Delta, and a total of 15 counties and parts of several others.
Document 2: Mississippi: Mississippi is a state in the southern region of the United States, with part of its southern border formed by the Gulf of Mexico. Its western border is formed by the Mississippi River.
Document 3: Electric guitar: An electric guitar is a fretted stringed instrument with a neck and body that uses a pickup to convert the vibration of its strings into electrical signals. The vibration occurs when a guitarist strums, plucks, fingerpicks, or taps the strings. It is sensed by a pickup, most commonly by a magnetic pickup that uses the principle of direct electromagnetic induction. The signal generated by an electric guitar is too weak to drive a loudspeaker, so it is plugged into a guitar amplifier before being sent to a loudspeaker, which makes a sound loud enough to hear. The output of an electric guitar is an electric signal, and the signal can easily be altered by electronic circuits to add "color" to the sound or change the sound. Often the signal is modified using effects such as reverb and distortion and "overdrive", with the growling sound of the latter being a key element of the sound of the electric guitar as it is used in blues and rock music.
Document 4: Peavey Delta Blues 210: The Peavey Delta Blues 210 is a guitar amplifier produced by Peavey Electronics. It is a tube amplifier designed for Blues musicians. The name is inspired by the Delta blues, an early style of blues music that originated in the Mississippi Delta. The Delta Blues 210 is a member of the Classic Series family of amplifiers. It is complemented by the Delta Blues 115 in the Peavey lineup, though it sounds different, due to its pair of 10 inch speakers. It has been compared to the Fender Hot Rod Deluxe.
Document 5: Peavey Delta Blues 115: The Peavey Delta Blues 115 is a guitar amplifier produced by Peavey Electronics. It is a tube amplifier designed for Blues musicians. The name is inspired by the Delta blues, an early style of blues music that originated in the Mississippi Delta. The 15 inch speaker is part of its distinctive mid-range and low end sound. It is complemented by the Delta Blues 210 in the Peavey lineup. The Peavey Delta Blues 115 is comparable to the Fender '65 Twin Custom 15, along with other amplifiers. The Delta Blues 115 is a member of the Classic Series family of amplifiers, and is very similar to its sister amp the Peavey Classic 30, aside from some different features.
Document 6: Economy of Memphis, Tennessee: Located on the Mississippi River, Memphis is one of the largest metropolitan areas in the Southeast, ranking 41st out of the top 75 according to a Department of Labor Release. Of the 40 metropolitan areas ahead of Memphis, only 12 are in the South, according to the Census definition The city has historically been one of the largest shipping hubs in the Mid-South, dating back to the Civil War, when the port was one of the largest on the Mississippi River and served as a shipping hub for the Confederacy.
Document 7: List of Chicago blues musicians: Chicago blues is a form of blues music developed in Chicago, Illinois, in the 1950s, in which the basic instrumentation of Delta blues—acoustic guitar and harmonica—is augmented with electric guitar, amplified bass guitar, drums, piano, harmonica played with a microphone and an amplifier, and sometimes saxophone. The best-known Chicago blues musicians include singer-songwriters and bandleaders Muddy Waters, Howlin' Wolf, and Willie Dixon; guitar players such as Elmore James, Luther Allison, and Buddy Guy; and harp (blues slang for harmonica) players such as Little Walter, Paul Butterfield, and Charlie Musselwhite. Since the 1960s, the Chicago blues style and sound has spread around the US, the UK and beyond.
Document 8: Plantations in the American South: Plantations were an important aspect of the history of the American South, particularly the antebellum (pre-American Civil War) era. The mild subtropical climate, plentiful rainfall, and fertile soils of the American Southeast allowed large plantations to flourish; where large numbers of workers, usually Africans held captive for slave labor, were required for agricultural production.
Document 9: Distortion (music): Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments, usually by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone. Distortion is most commonly used with the electric guitar, but may also be used with other electric instruments such as bass guitar, electric piano, and Hammond organ. Guitarists playing electric blues originally obtained an overdriven sound by turning up their vacuum tube-powered guitar amplifiers to high volumes, which caused the signal to get distorted. While overdriven tube amps are still used to obtain overdrive in the 2010s, especially in genres like blues and rockabilly, a number of other ways to produce distortion have been developed since the 1960s, such as distortion effect pedals. The growling tone of distorted electric guitar is a key part of many genres, including blues and many rock music genres, notably hard rock, punk rock, hardcore punk and heavy metal music.
Document 10: Dockery Plantation: Dockery Plantation was a 25600 acre cotton plantation and sawmill in Dockery, Mississippi, on the Sunflower River between Ruleville and Cleveland, Mississippi. It is widely regarded as the place where Delta blues music was born. Blues musicians resident at Dockery included Charlie Patton, Robert Johnson and Howlin' Wolf. The property was added to the National Register of Historic Places in 2006.
Document 11: Fender Hot Rod Deluxe: The Fender Hot Rod Deluxe is a guitar amplifier manufactured and sold by the Fender Musical Instruments Corporation. It was introduced in 1995 as part of the "Hot Rod" line of guitar amplifiers and has been in continuous production since. The Hot Rod Deluxe is a modified version of the Fender Blues Deluxe from the earlier Blues line of amplifiers, and has a higher level of gain in its preamplification signal. This model, along with the Hot Rod Deville, were originally designated as F.A.T. ('Fender American Tube') amplifiers but this moniker was dropped in 2002 when production of this series of amps was moved from Corona, CA to Fender's Baja-Ensenada, Mexico manufacturing facility.
Document 12: Mississippi Delta: The Mississippi Delta is the distinctive northwest section of the U.S. state of Mississippi which lies between the Mississippi and Yazoo Rivers. The region has been called "The Most Southern Place on Earth" ("Southern" in the sense of "characteristic of its region, the American South"), because of its unique racial, cultural, and economic history. It is 200 miles long and 87 miles across at its widest point, encompassing circa 4,415,000 acres, or, some 7,000 square miles of alluvial floodplain. Originally covered in hardwood forest across the bottomlands, it was developed as one of the richest cotton-growing areas in the nation before the American Civil War (1861-1865). The region attracted many speculators who developed land along the riverfronts for cotton plantations; they became wealthy planters dependent on the labor of black slaves, who comprised the vast majority of the population in these counties well before the Civil War, often twice the number of whites.
Document 13: Piedmont blues: Piedmont blues (also known as East Coast, or Southeastern blues) refers primarily to a guitar style, the Piedmont fingerstyle, which is characterized by a fingerpicking approach in which a regular, alternating thumb bass string rhythmic pattern supports a syncopated melody using the treble strings generally picked with the fore-finger, occasionally others. The result is comparable in sound to ragtime or stride piano styles.
Document 14: Fender Hot Rod DeVille: The Fender Hot Rod DeVille is a combo tube guitar amplifier manufactured and sold by Fender. It was introduced in 1996 as part of Fender's Hot Rod line of amplifiers, and since then has been in continuous production. The Hot Rod DeVille is a modified version of the earlier Fender Blues DeVille from the Blues amplifier line, and has a higher level of gain in its preamplification signal. The DeVille incorporates a 60 watt amplifier, and is available in two different models: a 212, which includes a pair of 12" speakers, and the 410, which includes four 10" speakers. The DeVille is the sister amplifier of the Fender Hot Rod Deluxe.
Document 15: History of the Southern United States: The history of the Southern United States reaches back hundreds of years and includes the Mississippian people, well known for their mound building. European history in the region began in the very earliest days of the exploration and colonization of North America. Spain, France, and England eventually explored and claimed parts of what is now the Southern United States, and the cultural influences of each can still be seen in the region today. In the centuries since, the history of the Southern United States has recorded a large number of important events, including the American Revolution, the American Civil War, the ending of slavery, and the American Civil Rights Movement.
ground_truth: Mississippi Delta