CREATE TABLE table_20578 ("Date  ( CE ) " CLOB, "Text" CLOB, "Simplified characters" CLOB, "Traditional characters" CLOB, "Pinyin" CLOB, "Wade-Giles" CLOB, "Literal meaning" CLOB)

Name the date for q ngyu n y m
SELECT "Date (CE)" FROM table_20578 WHERE "Pinyin" = 'qíngyuán … yìmǎ'
SELECT "Date (CE)" FROM "table_20578" WHERE "Pinyin" = 'qíngyuán … yìmǎ'