SELECT "Winner" FROM table_47293 WHERE "Year" < '1956' AND "Date" = 'october 21'
Who was the winning team before 1956 on October 21?
CREATE TABLE table_47293 (
    "Year" real,
    "Date" text,
    "Winner" text,
    "Result" text,
    "Loser" text,
    "Location" text
)