In the early 19th century, scientists discovered that when a block of quicklime (calcium oxide) was heated in an oxy-hydrogen flame (a flame produced by burning hydrogen in oxygen), it produced an intense white light. This phenomenon, known as limelight or calcium light, was pioneered by Goldsworthy Gurney, with the first practical demonstration and device constructed by Thomas Drummond in the mid-1825.
Before electric lighting, limelight revolutionized stage illumination by offering a focused, brilliant beam that could highlight a performer in otherwise dim surroundings. Technicians controlled the beam using lenses, creating one of the earliest forms of theatrical spotlighting.
Because the most prominent actor stood in the limelight, the phrase came to symbolize someone receiving public attention or admiration. Today, to be “in the limelight” means to be at the center of interest, especially in the media or public eye.
