Korea's earliest archeological sites, discover ed at Yang yang gun and Osan-ni in the province of Kang won, date from Sooo to sooo Bac... They co,uin bottomed potteryaecorated with design Between sooo and nooo n Jeulmun earthen ware appears in western and southern co gions of Korea. These wide-mouthed storage and cooking named after the their original discovery, with patterns of di unid onal lines made with a comblike instrument They are with the spread of evolving set tled agriculture societies during this era Remains from Korea's Mumun pottery period(15oo-3oo E.) show that, by this time, Koreans had become millet farmers, The era is also well ements and megalith. or large stone, burial sites found in the Liao River basin of North Korea. The supporting buried tombs using upright stones a horizon- tal slab. Another form of burial for elites and com- moners used stone cists(underground burial chambers lined with stone) and earthenware jar coffins. Bronze ritual objects, pottery, and jade or aments similar to those found in the early Chi nese imperial tombs have been recovered from these first Korean tombs, reflecting that Koreans at this time shared similar beliefs about an afterlife with their Chinese neighbors. development that of Korea in the dates of from a and gathering culture to a settled agricultural econ omy. Its first artifacts associated with the J culture(io,ooo-3oo B.C.E), named for its wide-