Wilhelm Conrad Röntgen was born near Düsseldorf and worked in the Würzburg university. In 1896, as a result of experiments with a cathode tube, he discovered a new, heretofore unknown radiation, which was called roentgen radiation after him. It is interesting that Röntgen never claimed for the invention to carry his name. He was an extremely modest man and refused to license his invention, eliminating any kind of commercial use. Later, when Kaiser Wilhelm wanted to give the scientist a title of nobility to recognize his merits, Röntgen refused this honour too.
The very same cathode tube can be seen in the two-storey house museum of Röntgen. His personal items and documents are also exhibited here, as well as the Nobel diploma which he was awarded in 1901. Due to the same natural modesty, Röntgen refused to attend the awarding ceremony. Twenty years later he contributed his monetary prize to the famine-stricken population of Germany.