World AIDS Day is observed on 1st December every year. It is a day to raise awareness about HIV/AIDS and to remember those who have died from the disease. This day is an opportunity for people worldwide to unite in the fight against HIV/AIDS, show their support for people living with HIV, and to remember those who have lost their lives to the disease. The first World AIDS Day was observed in 1988, and since then, it has been observed every year on December 1st.