CREATE TABLE table_77968 ("Race" TEXT, "Circuit" TEXT, "Date" TEXT, "Pole position" TEXT, "Fastest lap" TEXT, "Winning driver" TEXT, "Constructor" TEXT, "Tyre" TEXT, "Report" TEXT)

What is the date of the circuit of Monaco?
SELECT "Date" FROM table_77968 WHERE "Circuit" = 'monaco'
SELECT "Date" FROM "table_77968" WHERE "Circuit" = 'monaco'