On Wednesday, the American Cancer Society celebrates its 100th year.
The non-profit started in 1913.
It was started by 15 doctors and businessmen in New York City who were determined to raise awareness about cancer.
23 years later women got involved and became monumental in the movement
1946 is when the first research project was started. It led to the first chemotherapy, new screening tools, and the fight to stop smoking and prevent lung cancer.
Today, the American Cancer Society has helped millions of people battling cancer and their families.
But of course, the fight is not over.
For more information on American Cancer Society "through the years" and how you can help their mission, visit http://www.cancer.org/fight/timeline