This authoritative reference book looks at the process by which Spain extended its influence throughout the modern world. It provides more than 1, 200 brief descriptive essays covering colonies, individuals, political institutions, legislation, treaties, conferences, wars, revolutions, technologies, social and religious groups, and military battles. References at the end of each entry provide sources of additional information for those wishing to pursue the subject further. Cross-references within the text, designated by an asterisk, will help the reader to find related items.