Carlos Castañeda was an American anthropologist and writer. Starting in 1968, Castaneda published a series of books that describe a training in shamanism that he received under the tutelage of a Yaqui "Man of Knowledge" named don Juan Matus. While Castaneda's work was accepted as factual by many when the books were first published, the training he described is now generally considered to be fictional.

Cajamarca, also known by the Quechua name, Kashamarka, is the capital and largest city of the Cajamarca Region as well as an important cultural and commercial center in the northern Andes. It is located in the northern highlands of Peru at approximately 2,750 m (8,900 ft) above sea level in the valley of the Mashcon river. Cajamarca had an estimated population of about 226,031 inhabitants in 2015, making it the 13th largest city in Peru.