Conversation so far:
What is Dream Shake?
Olajuwon established himself as an unusually skilled offensive player for a big man, perfecting a set of fakes and spin moves that became known as his trademark Dream Shake.
What did these moves consist of?
Shaquille O'Neal stated: "Hakeem has five moves, then four countermoves - that gives him 20 moves..
Did it always work against his opponents?
The Dream Shake was very difficult to defend, much like Kareem Abdul-Jabbar's sky-hook.

Question: When did he begin using the Dream Shake?
Self-contained rewrite: When did Hakeem Olajuwon begin using the Dream Shake?