fromOpen Culture
13 hours agoSeven Wonders of the Ancient World: From the Walls of Babylon to the Sewers of Rome
Seven were the strings of the lyre (unless there happened to be eight or nine), seven were the gates of Thebes, and seven were the "wandering stars" in the night sky (if you count the sun and moon). The identity of the wonders was less important than the length of their list, and indeed, additions and changes were proposed since the beginning.
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