Why is it called the limelight?

Question

And where are my fifteen minutes of fame?

Answer 1

Limelight is a type of stage lighting once used in theatres and music halls.

Technical details:An intense illumination is created when a certain flame  (oxyhydrogen flame if you know what that is) is directed at a cylinder of lime (calcium oxide), [1] which can be raised to 2572°C before melting. The light is produced by a combination of incandescence and candoluminescence.

Although it has long since been replaced by electric lighting, the term has nonetheless survived, as someone in the public eye is still said to be "in the limelight".

Your time will come ;D

Answer 2

In early theater a flame of oxygen and hydrogen was used to burn a cylinder of lime.  It would glow very bright.  The light would be reflected by a polished plate and directed to illuminate the actors on a stage.  

"Fifteen minutes of fame" was purposed by Andy Warhol in the 60's.

Because of cultures interest in what ever was popular seemed to be fleeting.  He said that someday everyone will have 15 minutes of fame.