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Who Invented Money?
Today’s Wonder of the Day may have you shouting, “Show me the money!”
Who Invented Money?
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Where Does Old Money Go?
Today’s Wonder of the Day takes a look at what happens to old, dirty bills!
Where Does Old Money Go?
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How Smart Are Vending Machines?
If you like candy or soda, today’s Wonder of the Day will be a nice change of pace!
How Smart Are Vending Machines?