Abstract
After Wilhelm Conrad Röntgen discovered X-rays in 1895, French physician Antoine Louis Gustave Béclère pioneered the development of radiology in the late 1800s. Béclère recognized the enormous potential of radiation both diagnostically and therapeutically. His radiotherapy techniques quickly gained international renown. In 1897, he founded the world's first radiology teaching lab, the Hospital Radiology Laboratory at Tenon Hospital in Paris. As a hospital physician and researcher, Béclère also had endocrinology, immunology, and virology expertise and published several important papers on various diseases, including many articles on cancer treatment.