 The 2,900 square foot home was the only one ever owned by Monroe, and it's where she died in 1962. I'm Lisa Taylor. Today is National HIV Testing Day. Over a million Americans are currently living with the virus, which was first observed in 1981. National HIV Testing Day was started in 1995 to encourage people to get tested for the virus, know their status, and get treatment. Those who receive a positive test result are being urged to start HIV treatment right away.