How Quicklime Revolutionized Stage Lighting Before Electricity

An ornate, vintage theater filled with an audience watching a stage performance under dramatic lighting. A man in period clothing stands beside a large, glowing lantern on a stand, holding a tool to adjust it. The text overlay explains that this lantern, fueled by heated calcium oxide (quicklime), was used before electricity and is the origin of the phrase 'in the limelight'.

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