Attempting to qualify for "Super Millionaire," Day 5

I don't know how one manages to hate a comet, but I went out on this, my fourth question today:

"Put the following four events associated with comets in order from first to most recent...

1. Comet Hale-Bopp is at its brightest.
2. The most recent appearance of Halley's Comet.
3. Pieces of the Shoemaker-Levy comet crash into Jupiter.
4. Comet Hyukatake comes within 9 million miles of Earth."

Problem is that 1, 3, and 4 were all in the mid-to-late 1990s, and I wasn't exactly sure of the order. I put 2-3-1-4, and it was actually 2-3-4-1 (1985-86, 1994, 1996, 1997).