TIL: Before electricity, theatrical groups would heat up calcium oxide, also known as quicklime, for stage lighting. This is where the expression “in the limelight” originates from. People use to literally be in the limelight.

https://www.pghcitypaper.com/pittsburgh/study-says-renewable-energy-power-plants-will-overtake-natural-gas-plants-by-2035/Content?oid=15834618

Hy pick's