The Sotho Kingdom was an African kingdom in the country of Lesotho (also known as Basutoland) was an English and Dutch occupied colony. The Sotho Kingdom was led by a chieftain named Moshoeshoe who agreed to British occupation as long as they provided the country with protection from warlords and Dutch colonizers who killed many chieftains to claim the tribes' land ("Lesotho"). The Sotho Kingdom worked in great cooperation with Britain and France to protect itself from the threat of war from neighboring territories ("Lesotho: Early British Proctorate"). 

The Sotho Kingdom caused many Basotho peoples to travel between Africa and England, as well as having permanent residency in England. The relationship between the two countries would impact the population of Besotho migrants in England, eventually leading to the influence of English and Christianity on the country ("Lesotho: Early British Proctorate"). This influence would lead to the writing of Chaka by Thomas Mofolo, one of the most recognizable authors from Lesotho. His work was translated from Southern Sotho to English and appealed to a greater audience because of it. 

"Lesotho." Encyclopedia Britannica, https://www.britannica.com/place/Lesotho/Cultural-life. 

"Lesotho: Early British Proctorate." African Democracy Encyclopedia Project, https://www.eisa.org/wep/lesoverview3.