CREATE TABLE table_31578 ("Date" TEXT, "Venue" TEXT, "Score" TEXT, "Result" TEXT, "Competition" TEXT)

Tell me the date of stade des martyrs, dr congo
SELECT "Date" FROM table_31578 WHERE "Venue" = 'stade des martyrs, dr congo'
SELECT "Date" FROM "table_31578" WHERE "Venue" = 'stade des martyrs, dr congo'