CREATE TABLE table_63127 ("Player" TEXT, "Int'l Debut" TEXT, "Year" FLOAT, "Cross Code Debut" TEXT, "Date" TEXT, "Position" TEXT)

What date was the Cross Code Debut of rl 1st test great britain v australia, and the Int'l Debut was RU Five Nations v Ireland?
SELECT "Date" FROM table_63127 WHERE "Cross Code Debut" = 'rl 1st test great britain v australia' AND "Int'l Debut" = 'ru five nations v ireland'
SELECT "Date" FROM "table_63127" WHERE "Cross Code Debut" = 'rl 1st test great britain v australia' AND "Int'l Debut" = 'ru five nations v ireland'