Esan people, or Esans, are an Edoid-speaking ethnic group who share a common culture and the Esan language. The Esan are traditionally known to be agriculturalists, trado-medical practitioners, mercenary warriors and hunters. They cultivate palm trees, Irvingia gabonensis (erhonhiele), Cherry (Otien), bell pepper (akoh) coconut, betel nut, kola nut, black pear, avocado pear, yams, cocoyam, cassava, maize, rice, beans, groundnut, bananas, oranges, plantains, sugar cane, tomato, potato, okra, pineapple, paw paw, and various vegetables.^[3]

The modern Esan nation is believed to have been organized during the 15th century, when citizens, mostly nobles and princess, left the neighbouring Benin Empire for the northeast; there they formed communities and kingdoms called eguares among the aboriginal peoples whom they met there^[4] There are on the whole 35 established kingdoms in Esanland, including Amahor, Ebelle, Egoro, Ewohimi, Ekekhenlen, Ekpoma, Ekpon, Emu, Ewu, Ewato, Ewosa, Idoa,^[5] Ifeku, Igueben, Ilushi, Inyelen, Irrua, Ogwa, Ohordua, Okalo, Okhuesan, Onogholo, Opoji, Oria, Orowa, Uromi, Udo, Ugbegun, Ugboha, Ubiaja, Urhohi, Ugun, Ujiogba, Ukhun, and Uzea.^[6]