When did Michael dunk from the free throw?

Michael Jordan attended the Slam dunk contest 3rd times (1985 (finished 2nd),1987 1st,1988 1st)

He dunked from free throw line in 1985 but this dunk is less famous than the two he did from the free throw line in 1987 and 1988.

Dunk from the 1987 Slam Dunk Contest is the most popular.