History is filled with numbers: years of rule, distances travelled, armies mobilized, cities besieged, territories conquered, and generations transformed. History by the Numbers brings together a collection of visual infographics that use rankings, timelines, comparisons, and carefully selected examples to explore patterns across world history. From long-lived dynasties and imperial expansion to famous sieges, voyages of exploration, military disasters, technological change, and religious history, each infographic turns complex historical subjects into an accessible visual story.