In the history of Indonesia, Austronesian people, who form the majority of the modern population, migrated to South East Asia from Taiwan. They arrived in Indonesia around 2000 BC, and confined the native Melanesian peoples to the far eastern regions as they expanded.[5] Dong Son culture spread to Indonesia bringing with it techniques of wet-field rice cultivation, ritual buffalo sacrifice, bronze casting, megalithic practises, and ikat weaving methods. Ideal agricultural conditions, and the mastering of wet-field rice cultivation as early as the 8th century BC,[6] allowed villages, towns, and small kingdoms to flourish by the 1st century AD.