Ndị ozi ala ọzọ mbụ nke ndị Katọlik rutere na 1794, afọ iri mgbe nloghachi nke Yi Sung-hun, onye nnọchianya nke bụ onye mbụ Korea e mere baptizim na Beijing. O guzobere a grassroots lay Catholic ije na peninsula. Otú ọ dị, ihe odide nke Jesuit ozi ala ọzọ Matteo Ricci, onye bi na eze ukwu ikpe na Beijing, e meela ka Korea si China na narị afọ nke 17. Ndị ọkà mmụta nke Silhak ("Practical Learning"), na-adọta ndị Katọlik ozizi, na nke a bụ isi ihe na-agbasa nke ndị Katọlik na 1790s. Ntinye nke echiche na echiche nke Western Christianity na Korea bịara mara dị ka Seohak ("Western Learning").
ngwụcha narị afọ nke 18 ruo narị afọ nke 19