Although Thomas Edison used x-ray technology in some of his inventions, x-ray photography was invented in Germany.
In 1895, German mechanical engineer Wilhelm Röntgen, who later won a Nobel Prize in Physics, discovered x-ray radiation.
Thomas Edison built on Röntgen's findings, using his research as the basis for inventions such as a fluorescent lamp. However, Edison ceased experimenting with x-rays when his assistant died from complications from radiation exposure.