In 1990, Jeong was posthumously awarded the Order of Merit for National Foundation in the third grade, i.e., the Independence Medal, by the Korean government.

[6] When Sunjong of Korea passed away, Jeong wrote an epitaph for the imperial tomb of Yureung in honor of the deceased.

This book consisted of the complete written records of Jeong Yak-yong, a philosopher from the late Joseon period who is considered as a crucial figure in Silhak.

[17] Korean historians of the 1930s are described as belonging to three groups: (i) Chindan Hakhoe (진단학회)’s empirical approach to history validating primary sources, (ii) socio-political interpretation heavily influenced by Marxism to refute the Japanese view of Korean history put forth by Paek Nam-un, and (iii) a group of nationalist historians led by Jeong In-bo.

According to Jeong's ideals, the discovery of an independent national identity would help Korea to overcome the dominating Japanese colonial ideologies in fields such as culture and history.

[19] For instance, in the  essay Five Thousand Years of Korea’s Ol/Spirit, Jeong writes as follows: “although I am not a historian, upon reading just one or two pages of the Japanese-written history books, I found it so difficult to suppress my rage at their cunning distortion that I began to write the book as an attempt to find Korea’s spirit.”[20] In the effort towards the Korean spirit(Ol) or  true Koreanness, the Joseonhak Movement delved into the history of Korean thoughts through its historical research and shed light on the history of Silhak in the late Joseon period.

Silhak highlighted practical and reality-focused aspects, which contrasted with the dominating framework of Cheng-Zhu School of Neo-Confucianism in the Joseon Period that instead drifted into metaphysical structures.

Lee led Jeong to follow the succession of later Joseon's Soron and a particular sector of Yangmingism called Ganghwa School (Ganghwa-hakpa).

[28] Park Seok-moo, the head of the Institute of Dasan (another pen name of Jeong Yak-yong) Studies, comments that this collection “is the entirety of Dasanhak, or studies of Dasan, which proposes possible ways to remedy the corrupt world [at the time in the late Joseon Dynasty].”[29][30] The publication of Collective Works of Yeoyudang  (여유당전서, 1938) marked the starting point of the Joseonhak Movement, with emphasis on Yeoyudang as a pivotal figure in Silhak and in advocacy of genuine "Koreanness" in the face of Japanese colonization.

[31] Jeong In-bo wrote lyrics for songs that commemorated significant dates in the history of South Korea such as Korean National Days.