CREATE TABLE table_56864 ("Race Name" CLOB, "Circuit" CLOB, "Date" CLOB, "Winning driver" CLOB, "Constructor" CLOB, "Report" CLOB)

On what date was the I Dessau Autobahnspinne race?
SELECT "Date" FROM table_56864 WHERE "Race Name" = 'i dessau autobahnspinne'
SELECT "Date" FROM "table_56864" WHERE "Race Name" = 'i dessau autobahnspinne'