Aztec Century is a novel by Christopher Evans

Christopher Evans (author)

Christopher Evans is a British science fiction writer and children's author. His novels include Capella's Golden Eyes , The Insider , Mortal Remains and Ice Tower...

. First published in 1993 by Victor Gollancz

Victor Gollancz Ltd

Victor Gollancz Ltd was a major British book publishing house of the twentieth century. It was founded in 1927 by Victor Gollancz and specialised in the publication of high quality literature, nonfiction and popular fiction, including science fiction. Upon Gollancz's death in 1967, ownership...

, this is an alternate history novel, in which the Aztec Empire conquers Britain

Great Britain

Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...

. In this world, Cortez

Cortez

-People:* Antawn Cortez Jamison , Professional NBA power forward* Dave "Baby" Cortez , American pop music and R&B musician* Gregorio Cortez , Mexican folk hero* Hernán Cortés , Spanish conquistador...

 changed sides at the onset of the Conquistador

Conquistador

Conquistadors were Spanish soldiers, explorers, and adventurers who brought much of the Americas under the control of Spain in the 15th to 16th centuries, following Europe's discovery of the New World by Christopher Columbus in 1492...

 era in the early 16th century, leading to the repulsion of Spanish invasion and occupation of Central America

Central America

Central America is the central geographic region of the Americas. It is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. When considered part of the unified continental model, it is considered a subcontinent...

. Due to fortuitously strong central leadership, the Aztec Empire has become a technologically sophisticated global power in this alternate twentieth century.