and 38,000 Jeju Islanders lived in Osaka alone by 1934. Immigration to Japan continued even after Korean independence into the 1980s. Jeju is still spoken by older members of these diaspora communities, although younger individuals speak Japanese as their native language and are not fluent in Jeju. Severe disruption to the Jeju language community began after the end of Japanese rule in 1945. Following World War II, Korea was divided between an American-backed government in the South and a Soviet-backed government in the North. Popular opposition to the division of Korea and police brutality led to a rebellion against the American military government on 3 April 1948. The Syngman Rhee regime, which succeeded the American administration in August 1948, suppressed the rebellion with mass killings of civilians. As many as sixty thousand Jeju Islanders, or a full fifth of the pre-rebellion population, were killed. Forty thousand more fled to Japan. Out of the four hundred villages of the island, only 170 remained. The devastating impact of the massacres on the Jeju language community was exacerbated by the outbreak of the Korean War in 1950. While Jeju was never occupied by the North Korean army, nearly 150,000 Korean-speaking refugees from the mainland fleeing North Korean invasion arrived in Jeju in the first year of the war. These events shattered the Jeju language's former dominance on the island, and Standard Korean was beginning to displace Jeju in the public sphere by the 1950s. The decline of Jeju continued into the 1960s and 1970s. The Saemaeul Movement, an ambitious rural modernization program launched by Park Chung-hee, disrupted the traditional village community where Jeju had thrived. The language came to be perceived as an incorrect dialect of Korean, so that students were subject to corporal punishment if they used it in school, and the use of Standard Korean even in the private sphere began to spread from Jeju City outwards. The language attitude of native Jeju speakers in this period was self-disparaging, and even Jeju people regarded the use of Jeju "with contempt." A 1981 survey of language attitudes among high school and university students natively speaking Seoul Korean, Chungcheong Korean, Southwestern Korean, Southeastern Korean, and Jeju showed that Jeju speakers were the most likely among the five groups to ascribe negative traits to their native variety. A 1992 study of code-switching by native Jeju speakers shows that Jeju was by then in an