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?

The Peavey Delta Blues 115 is a guitar amplifier produced by Peavey Electronics.  It is a tube amplifier designed for Blues musicians.  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 name is inspired by the Delta blues, an early style of blues music that originated in the Mississippi Delta.  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. <SEP> 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. <SEP> The Bobo are an ethnic group living in Burkina Faso although the area occupied by the Bobo extends north into Mali.  Bobo is also the name of the second biggest city in Burkina Faso.  In much of the literature on African art the group that lives in the area of Bobo-Dioulasso is called Bobo-Fing, literally 'black Bobo.'  These people call themselves Bobo and they speak the Bobo language, a Mande language.  The Bamana (Bambara) people also call another ethnic group "Bobo," the Bobo-Oule/Wule, more precisely called the Bwa.  While the Bwa (Bobo-Oule) are a Gur people, speaking Gur languages, the true Bobo (Bobo Madare, Bobo Fing), the topic of this article, are a Mande people.  The Bobo number about 110,000 people, with the great majority in Burkina Faso.  The major Bobo community in the south is Bobo-Dioulasso, the second city of Burkina Faso and the old French colonial capital.  Farther north are large towns, including and Kouka, with Boura in the extreme north in Mali.  The Bobo are far from homogeneous.  They are an ancient aggregation of several peoples who have assembled around a number of core clans that do not preserve any oral traditions of immigration into the area.  Their language and culture are more closely related to those of their Mandé neighbors to the north and west, the Bamana (as well as the Minianka, also known as Mamara Senoufo, and a Gur people) than to their Voltaic neighbors the Gurunsi and Mossi, but they should be thought of as a southern extension of the Mandé people who live in what is now Burkina Faso, rather than an intrusive Mandé group that has recently penetrated the region.  Although over 41% of Bobo lineages claim a foreign origin, they also say that they are autochthonous. <SEP> The Chicago blues is a form of blues music indigenous to Chicago, Illinois.  Chicago blues is an electric blues style of urban blues.  Urban blues evolved from classic blues following the Great Migration, or the Great Northern Drive, which was both forced and voluntary at times, of African Americans from the southern United States to the industrial cities of the north, such as Chicago.  Muddy Waters directly joined that migration, like many others, such as in Florida, avoiding the more harshly southern Jim Crow laws.  Bruce Iglauer, founder of Alligator Records stated that, "Chicago blues is the music of the industrial city, and has an industrial sense about it."  Additionally, recognizing the shift in blues, Chicago blues singer and guitarist Kevin Moore expressed the blues transition stating, "You have to put some new life into it, new blood, new perspectives.  You can't keep talking about mules, workin' on the levee."