Slots originated in the early days of gambling, allowing players to bet and win based on chance. The first machines, created in the late 19th century, were simple mechanical devices featuring basic symbols. As technology advanced, slots evolved from mechanical to electronic formats, introducing more complex gameplay. The late 20th century saw the rise of video slots, which brought in diverse themes and bonus features. The advent of online casinos in the early 21st century expanded access and catalyzed enhancements in graphics and interactivity. Today, slots continue to adapt, focusing on mobile compatibility, social elements, and gamification to improve player engagement in a dynamic digital environment.