The "Red Ribbon" is a symbol that represents various causes, most notably the fight against HIV/AIDS. It was first introduced in 1991 during the American Foundation for AIDS Research campaign. The red color signifies passion and urgency in addressing the epidemic and supporting those affected by the disease. In addition to its association with HIV/AIDS, the red ribbon is also used to raise awareness for other issues, such as substance abuse prevention and heart disease. Various organizations and events utilize the red ribbon to promote education, support, and advocacy for these important health-related causes.