An excellent history of mathematics from the beginning of counting to the 1960s, all in one volume!
Back in 2015, I read a book called Journey through Genius by William Dunham. This was a very good book which I still recommend to any lay person interested in a treatment of various mathematicians and important theorems throughout history. Dunham's book is written in a very accessible way that goes into some mathematical depth and makes even complicated theorems easy to understand. However, the book was relatively short, and it left me wanting more. It also had the annoying habit of treating the history of mathematics as if it were conducted by solitary geniuses pockmarked throughout history, rather than a collaborative effort of hard-working people.
Boyer's book, on the other hand, is a truly expansive work written by a proper historian! It reads more like a history book than a book of mathematics. Rather than focusing exclusively on individuals, he showed how different countries, mathematical schools, and cultural centers have influenced mathematics and interacted with each other. It provided a scaffolding to view the entire history of math without gaps, see how one age influenced the next, and more fully understand mathematicians within the culture contexts they were working in. He dispels many popular misconceptions that have built up through the ages and sets the record straight.
One of my favorite sections was on the mathematics of Ancient Mesopotamia. He explains how their mathematics weren't evaluated fairly by historians until much later because even though there are more existing records from Mesopotamian society than Egyptian society, the modern world had a head start interpreting hieroglyphics due to the Rosetta Stone. The Mesopotamians were actually surprisingly advanced in algebra before the time of the Greeks or al-Khwarizmi, including in the treatment of quadratic and even cubic equations! There's even evidence that they engaged in more recreational mathematics, or at least mathematics that wasn't expecting to be immediately applicable to a problem. For anyone interested in learning developments in this fascinating field of research since Boyer published his book, I recommend checking out the Cuneiform Digital Library Initiative's website, or the recent works of Swedish math historian Jöran Friberg, who discusses the fascinating early Bronze Age developments in Sumer's sexagesimal counting system(s).
Another one of my favorite periods to read about in this volume was the 19th and early 20th century, which was such a creative period in the history of mathematics! I appreciate that he's not afraid of diving into these mathematical topics, even though it's on an undergraduate or first-year graduate level. I enjoyed reading about the abstractification of mathematics and rapid development of many different algebras and non-Euclidean geometries. I also loved reading about the life and work of mathematicians like Poincaré, Boole, Riemann, Lebesgue, and especially Emmy Noether.
The downsides: this might be an entitled complaint about a work over 600 pages long, but I wish I had gotten more! Everyone else rightly praises Boyer for his sections on Hindu, Arabic, and Chinese mathematicians, but I actually think these could have been longer and more in depth! I've found a lot of interesting reading about Chinese mathematics in particular that weren't included in this volume. It's possible there wasn't a lot of good research in English at the time Boyer was writing. I also think the sections about mathematics from the turn of the 20th century to the age Boyer's writing, which Boyer agrees is the *true* Golden Age of mathematics, could have had several more chapters devoted to them! There really was an explosion in the amount of mathematics at that time that warrants it. With a few exceptions, his treatment of mathematicians of this age was frustratingly short. While I didn't expect a treatment of mathematicians like Grothendieck, who won his first Fields Medal while Boyer was writing this, he could have written in more depth about figures such as Gödel or Ramanujan (the latter of whom he doesn't mention at all). One thing that left a particularly bad taste in my mouth was the second-to-last chapter of the book, where he erases Alan Turing's homosexuality and glosses over the circumstances of his death. This was a striking omission in a work that includes lengthy biographical sections about the tragic life of Évariste Galois and Condorect committing suicide in prison during the French Revolutionary period.
Going back through primary and secondary sources, I also noticed a few errors in the book, such as Boyer giving more credit to al-Mamun than the early al-Mansur to the establishment of The House of Wisdom in Baghdad and commissioning a translation of Euclid's Element, or his mistranslation of Fibonacci's "Liber Abaci" to "Book of the Abacus" rather than "Book of Calculations". These are relatively minor quibbles, and the history in the text holds up better against primary sources than some of the works I've read today, including Dunham's work and a math history textbook for a course I'm in that was written in 2015.
Overall, I give this book 4 1/2 stars, which I'll round up to a generous 5!