CREATE TABLE table_24923 ("Round" FLOAT, "Circuit" TEXT, "Date" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Winning Drivers" TEXT, "Winning Team" TEXT)

When was the circuit Donington Park?
SELECT "Date" FROM table_24923 WHERE "Circuit" = 'Donington Park'
SELECT "Date" FROM "table_24923" WHERE "Circuit" = 'Donington Park'