In which year was the discovery of x-rays made?

The discovery of x-rays took place in 1895. This groundbreaking development was made by Wilhelm Conrad Röntgen, who first observed x-rays while experimenting with cathode rays. Röntgen noticed that a fluorescent screen in his lab began to glow even though it was not in the direct path of the cathode rays. This led him to conclude that a new form of radiation was being emitted, which he later termed "x-rays" to signify the unknown nature of this radiation.

This discovery was significant because it opened up new avenues in both physics and medicine, allowing for advanced imaging techniques that are still in use today. The year 1895 is widely recognized as the starting point of medical imaging, making it a pivotal moment in scientific history.

The other years listed, such as 1875, 1890, and 1900, do not correspond to the discovery of x-rays and are not linked to significant advancements specifically regarding this particular form of radiation. Therefore, the choice made accurately represents the historical event of x-ray discovery.