The caudillo of Spanish America was both regional chieftain and, in the turbulent years of the early nineteenth century, national leader. His power base rested on ownership of land and control of armed bands. He was the rival of constitutional rulers and the precursor of modern dictators. In this book, Lynch explores the changing perception of the caudillo--bandit chief, guerrilla leader, republican hero--and examines his multi-faceted role as regional strongman, war leader, landowner, distributor of patronage, and the "necessary gendarme" who maintained social order. Lynch traces the origins...

xn + yn = zn, where n represents 3, 4, 5, ...no solution

"I have discovered a truly marvelous demonstration of this proposition which this margin is too narrow to contain."

With these words, the seventeenth-century French mathematician Pierre de Fermat threw down the gauntlet to future generations. What came to be known as Fermat's Last Theorem looked simple; proving it, however, became the Holy Grail of mathematics, baffling its finest minds for more than 350 years. In Fermat's Enigma--based on the author's award-winning documentary film, which aired on PBS's "Nova"--Simon...