Radiology is a branch of medicine that uses different imaging technologies such as x-rays, MRI and CT scans, to investigate and diagnose the possible causes of a person’s symptoms or disease.

X-rays were discovered in 1895 by German physicist Wilhelm Conrad Roentgen (1845–1923). For his discovery, Roentgen became the first recipient of the Noble prize in physics in 1901. X-rays, which revolutionized the science of medicine, allowed physicians for the first time to see inside the body without performing an invasive procedure.

The following is an excellent video on The History of Radiology.