Fun fact

On March 20th, 1987, the Food & Drug Administration approved the sale of AZT (azidothymidine), a drug shown to prolong the lives of some AIDS patients. This was the first approved treatment for HIV.

(That drug was first created in 1964, and it was intended to treat cancer. However, because it had too many side effects and was not really effective as a cancer treatment, use of that drug was shelved until years later.)