sentences:  Twenty-four types of "jeotgal" appear in "Miam ilgi", a 16th century diary written by a Joseon literatus, and over 180 types of "jeotgal" can be found in the coeval books "Gosa chwaryo" and "Swaemirok", and in 17‒18th century books "Eumsik dimibang", "Sallim gyeongje", and "Jeungbo sallim gyeongje".The types of "jeotgal" vary depending on main ingredients, regions, and family and personal preferences.In past times, due to the limited availability of transportation, regions near seas had more types of "jeot" compared to the inland areas.