Here are 50 illuminating facts about the parade ... the floor when the royalty walks. 44. Thomas Edison didn't consider the commercial light bulb to be his greatest invention.

Here are some illuminating facts about the parade, its long history and its namesake, inventor Thomas Edison ... in 1953 to honor Edison's invention of the commercial light bulb.

In 1879, Thomas Edison invented the incandescent light bulb and submitted the patent for the creation. Louisville's Thomas Edison House is celebrating the 140th Anniversary of Edison's 1879 ...