Prologue: Cambridge, England, 1993
Sidebar 1: Did the Egyptians know it?
Sidebar 2: The Pythagorean theorem in art, poetry, and prose
Translators and commentators, 500-1500 CE
François Viète makes history
From the infinite to the infinitesimal
Sidebar 3: A remarkable formula by Euler
371 proofs, and then some
Sidebar 4: The folding bag
Sidebar 5: Einstein meets Pythagoras
Sidebar 6: A most unusual proof
Sidebar 7: A Pythagorean curiosity
Sidebar 8: A case of overuse
Notation, notation, notation
From flat space to curved spacetime
Sidebar 9: A case of misuse
From Bern to Berlin, 1905-1915
Sidebar 10: Four Pythagorean brainteasers
