CREATE TABLE table_name_55 (year INT, event VARCHAR, notes VARCHAR)

What is the earliest Year for 400m h Event with 54.86 in Notes?
SELECT MIN(year) FROM table_name_55 WHERE event = "400m h" AND notes = "54.86"
SELECT MIN("year") FROM "table_name_55" WHERE "400m h" = "event" AND "54.86" = "notes"