Founded in 1913, the American Cancer Society is a community-based voluntary health organization. Its research program determines the causes of cancer and supports efforts to prevent and cure it. The organization offers programs to educate the public about cancer risks, early detection methods and prevention. It encourages regular medical checkups and recommended cancer screenings. The American Cancer Society s advocacy organization, the American Cancer Society Cancer Action Network, influences candidates and lawmakers to support laws and policies for cancer awareness. The organization accepts donations from individuals, corporations and foundations to support its research, programs and services. Headquartered in Atlanta, the American Cancer Society has more than 3,400 local offices.