In 1901, Buffalo was the center of civilization, site of the Pan-American Exposition, and Thomas Edison was its God. His Roentgen X-Ray machine sat in the Temple of Science. But the futuristic machine gave no hope to the fallen president. Edison was called up from New Jersey to get his machine to run, but before he could, the gynecologist at the fair who improvised McKinley's surgery had already sewn him up. McKinley died of gangrene within a few days. Thomas Edison's filmmakers, however, immortalized him in jerky video, their kinetoscopy—the first president captured on film.