CREATE TABLE table_16706 ("Rnd" FLOAT, "Race" TEXT, "Date" TEXT, "Location" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Race Winner" TEXT, "Constructor" TEXT, "Report" TEXT)

What was the date for monaco grand prix?
SELECT "Date" FROM table_16706 WHERE "Race" = 'Monaco Grand Prix'
SELECT "Date" FROM "table_16706" WHERE "Race" = 'Monaco Grand Prix'