The social media platform created by Mark Zuckerberg is Facebook. Launched in 2004, Facebook revolutionized social networking by allowing users to create personal profiles, connect with friends, and share content. Its success led to the widespread adoption of social media across various age groups and cultures, shaping how people communicate and interact online. Over the years, Facebook has expanded its features and services, including messaging, event planning, and business pages, making it a central platform in the digital communication landscape.