A Staple of medieval feasts and modern Halloween celebrations alike, candy has never gone out of fashion.
Christmas carols, which are probably rooted in celebratory pagan songs, have helped people celebrate Christmas for generations.
Kites have been used as toys and as tools of scientific study, and they will probably continue to serve humanity far into the future.
Some of today's best-known expressions seem to make no literal sense, but a look at their origins in the past clarifies their true meanings.