CREATE TABLE table_56558 ("Year" CLOB, "League" CLOB, "Record" CLOB, "Reg. Season" CLOB, "Playoffs" CLOB)

What year had a record of 4-21?
SELECT "Year" FROM table_56558 WHERE "Record" = '4-21'
SELECT "Year" FROM "table_56558" WHERE "Record" = '4-21'