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David Lindsay Roberts is an adjunct professor of mathematics at Prince George’s Community College in Largo, Maryland. His historical research has focused on mathematics education in the United States from independence to the present. He would like to thank Convergence editors Amy Ackerberg-Hastings and Janet Heine Barnett for the initial impetus to write this article. He also wishes to acknowledge the helpful suggestions made by Dennis Huffman, Mary Dutterer, and two anonymous referees on earlier versions. And for his wife, Jenny Scott, this article answers the question, “Why do you need a picture of our linen closet?”