It is known that the term bibimbap was first mentioned in the literature, Siuijeonseo. It is told that, when Sim Hwan Jin was newly appointed as the governor of Sangju in 1919, he borrowed a cooking book kept in a noble's house in Sangju and transcribed it on ruled paper which he then passed down to his daughter-in-law, Hong Jeong. The period when Sim Hwan Jin transcribed the book was around 1919, but it is estimated that the original book dated back to the end of the 1800s. This book has relatively well categorized and organized a wide scope of cooking recipes and offers a quick glance of foods that were available at the end of the Joseon Dynasty.
Source: 是議全書