Who discovered X-rays in 1895?

X-rays were discovered in 1895 by the German physicist Wilhelm Konrad Röntgen.

While experimenting with cathode rays in a partially evacuated glass tube, Röntgen observed that a fluorescent screen placed nearby began to glow, even when shielded from visible light. He deduced that an invisible form of radiation was being emitted from the point where the electron beam struck the glass wall of the tube. Because the nature of these rays was initially uncertain, he termed them X-rays.

Röntgen’s discovery, which he famously demonstrated by capturing a photographic image of the bones in his wife's hand, revolutionized diagnostic medicine and helped usher in the era of modern physics. In 1901, he was awarded the first Nobel Prize for Physics for his work, which he selflessly chose not to patent, believing that scientific discovery should benefit all of humanity.12