The Great Pyramid of Giza is the oldest of the Ancient Wonders of the World and the last one that remains largely intact. Enjoy more pyramid facts or learn about the Ancient Egyptian pyramids.

The word "limelight" that is used in theatre to refer to the performers on the stage originated because before electricity was available lime was burned in a lamp, which created a white light that was directed at the performers.

Sterling silver is not pure silver. Because pure silver is too soft to be used in most tableware it is mixed with copper in the proportion of 92.5 percent silver to 7.5 percent copper.

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