CREATE TABLE table_11672 ("Race" CLOB, "Date" CLOB, "Location" CLOB, "Pole Position" CLOB, "Fastest Lap" CLOB, "Race Winner" CLOB, "Constructor" CLOB, "Report" CLOB)

When were the British Grand Prix races?
SELECT "Date" FROM table_11672 WHERE "Race" = 'british grand prix'
SELECT "Date" FROM "table_11672" WHERE "Race" = 'british grand prix'