"san qi shuo"@zh-latn-pinyin-x-notone . "300106723" . . . "1988-01-01T00:00:00"^^ . "system, three-age"@en . "Division of human prehistory into three ages: the Stone Age, the Bronze Age, and the Iron Age."@en . . "2017-08-25T10:54:13"^^ . . . "\u4E09\u6642\u4EE3\u7CFB\u7D71"@zh-hant . "three-age system"@en . "s\u0101n q\u01D0 shu\u014D"@zh-latn-pinyin-x-hanyu . "sistema de tres edades"@es . "\u4E09\u671F\u8AAA"@zh-hant . "san ch'i shuo"@zh-latn-wadegile . . "drieperiodensysteem"@nl . .