Wilhelm Conrad Röntgen takes the first x-ray of his wife's hand.
Henri Becquerel discovers radioactivity.
The first commercially available fluoroscope was invented by Thomas Alva Edison.
Röntgen wins the Noble Peace Prize in Physics for his discovery of the x-ray.
Dr. Albert Salomon begins research on x-rayed cadaver breasts leading to mammography.
Dr. William Coolidge invents the hot cathode tube.
Max Von Laue wins the Noble Peace Prize for discovering the crystal structures derived from x-ray diffraction.
Eastman Kodak introduces the first radiographic film
Eddy J. Jerman founds the American Association of Radiologic Technicians (AART) which is today know as the American Society of Radiologic Technologists (ASRT).
Swedish physicist, Karl Manne Georg Siegbahn, won the Noble Peace Prize for his "discoveries and research in the field of x-ray spectroscopy".
Portuguese neurologist Egas Moniz develops cerebral angiography.