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Who first used the term topology in print?

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Because both a doughnut and a coffee cup have one hole (handle), they can be mathematically, or topologically, transformed into one another without cutting them in any way. For this reason, it has often been joked that topologists cannot tell the difference between a coffee cup and a doughnut. — topology Because both a doughnut and a coffee cup have one hole (handle), they can be mathematically, or topologically, transformed into one another without cutting them in any way. For this reason, it has often been joked that topologists cannot tell the difference between a coffee cup and a doughnut.

The German mathematician Johann Listing is widely credited with the first use of the term "topology" in print. He published Vorstudien zur Topologie ("Introductory Studies in Topology") in 1847.1