CREATE TABLE table_name_79 (event VARCHAR, year VARCHAR, athlete VARCHAR)

What event is before 1964 and has an athlete of l szl t bori gunnar nielsen?
SELECT event FROM table_name_79 WHERE year < 1964 AND athlete = "lászló tábori gunnar nielsen"
SELECT "event" FROM "table_name_79" WHERE "athlete" = "lászló tábori gunnar nielsen" AND "year" < 1964