CREATE TABLE table_2449 ("Round" FLOAT, "Circuit" TEXT, "Date" TEXT, "Pole Position" TEXT, "Fastest Lap" TEXT, "Winning Driver" TEXT, "Winning Team" TEXT)

What date did Renger Van Der Zande have the pole position at Donington Park?
SELECT "Date" FROM table_2449 WHERE "Pole Position" = 'Renger van der Zande' AND "Circuit" = 'Donington Park'
SELECT "Date" FROM "table_2449" WHERE "Circuit" = 'Donington Park' AND "Pole Position" = 'Renger van der Zande'