CREATE TABLE table_56063 ("Round" CLOB, "Date" CLOB, "Opponent" CLOB, "Score" CLOB, "Attendance" FLOAT, "Report" CLOB)

On what Date was the Opponent Panathinaikos?
SELECT "Date" FROM table_56063 WHERE "Opponent" = 'panathinaikos'
SELECT "Date" FROM "table_56063" WHERE "Opponent" = 'panathinaikos'