For more than five decades, Frank J. Swetz has advocated for the use of history and culture to enliven and deepen the study of mathematics. In particular, he has described how mathematical developments in non-Western societies might be incorporated into the training of secondary school teachers. His books include *Was Pythagoras Chinese? An Examination of Right Triangle Theory in Ancient China* (The Penn State Press, 1977), *From Five Fingers to Infinity: A Journey Through the History of Mathematics* (Open Court Publishing, 1994), and *Mathematical Expeditions: Exploring Word Problems Across the Ages* (Johns Hopkins University Press, 2012). More information on his career may be found here.

As a founding editor of *MAA Convergence*, Swetz focused especially on soliciting and preparing book reviews and on creating an extensive collection of Mathematical Treasures, visual images of interesting and great books or objects in the history of mathematics for use as illustrations in mathematics classes. Two of the earliest such images, both published in 2010, were Johannes Kepler's *Astronomia Nova* and *The Geometry* of Rene Descartes. The Index of Mathematical Treasures was officially introduced in 2012, and thus far contains a total of 720 Mathematical Treasures collected by Swetz. Together with *Convergence* co-founder Victor J. Katz, Swetz also authored the Mathematical Treasures from the Smith and Plimpton Collections at Columbia University**, ** a collection of an additional 106 images from the David Eugene Smith and George Arthur Plimpton collections.

**Take a look at these recent extended Mathematical Treasures articles by Swetz:**

**Be sure to also read the following articles by Swetz in ***Convergence:*

**Led Astray by a Right Triangle: Misconception, Epiphany, and Redemption**

A well-known historian initially erred in his study of ancient Chinese mathematics
- Led Astray by a Right Triangle: Misconception, Epiphany, and Redemption - Background
- Led Astray by a Right Triangle: Misconception, Epiphany, and Redemption - My Misconception
- Led Astray by a Right Triangle: Misconception, Epiphany, and Redemption - The Epiphany
- Led Astray by a Right Triangle: Misconception, Epiphany, and Redemption - Redemption
- Led Astray by a Right Triangle: Misconception, Epiphany, and Redemption - References and About the Author

**Pantas’ Cabinet of Mathematical Wonders: Images and the History of Mathematics**

Engage your students by using images, especially those of historical objects, manuscripts, and texts, in teaching mathematics
**Do We Teach Too Much Mathematics . . . ?**

An essay on the justifications for using history to teach mathematics.
**Reflections on Chinese Numeration Systems**

Reflections on how the rod numerals of ancient China can serve as an alternative for teaching preservice teachers about numeration systems.
**The ‘Piling Up of Squares’ in Ancient China**

Discussion of China's robust mathematical tradition drawn from Swetz's translation and commentary on the ninth chapter of *The Nine Chapters of the Mathematical Art.** *

**Learn more about the following books written or edited by Swetz:**

- The European Mathematical Awakening: A Journey Through the History of Mathematics from 1000 to 1800 (Dover, 2013), reviewed by Fernando Q. Gouvêa.
- The Search for Certainty: A Journey Through the History of Mathematics from 1800–2000 (Dover, 2013), reviewed by Fernando Q. Gouvêa.
- Mathematical Expeditions: Exploring Word Problems across the Ages (Johns Hopkins University Press, 2012), reviewed by Charles Ashbacher.
- Legacy of the Luoshu: The 4,000 Year Search for the Meaning of the Magic Square of Order Three (A K Peters, 2008), reviewed by Aldine van der Ham-Aaten.
- From Five Fingers to Infinity: A Journey Through The History of Mathematics (Open Court, 1994), no MAA review.
- Capitalism and Arithmetic: The New Math of the 15th Century (Open Court Publishing Company 1986), reviewed by Peter Ruane.
- Was Pythagoras Chinese? An Examination of Right Triangle Theory in Ancient China with T. I. Kao (Pennsylvania State University Press, 1977), no MAA review.

**Learn more about ***Convergence*'s history and its other long-term editors on our "Sweet Sixteen" celebration page.

"Celebrating Frank Swetz: Convergence Co-Founding Editor," *Convergence* (June 2019), DOI:10.4169/Convergence20190602