Sorae Church, which was the first Protestant church in Korea, was established by Seo Sang-ryun on May 16, 1883. Lee Soo-jung, one of the first Christians in Korea was baptized in Japan on April 29, 1883, and wrote an English article on the Missionary Review of the World to urge more American missionaries to enter Korea on December 13, 1883. Robert Samuel Maclay and Horace Newton Allen entered Korea one year later in 1884. Horace Allen was a North Presbyterian missionary who later became an American diplomat. He served in Korea until 1905, by which time he had been joined by many others.Kim, Sang-Hwan (1996). The impact of early Presbyterian missionary preaching (1884–1920) on the preaching of the Korean church (M.A. thesis), Wilfrid Laurier University
