Mark Elliot Zuckerberg is an American businessman and programmer, best known as the co-founder of the social media giant Facebook, now Meta Platforms. He currently serves as its chairman, chief executive officer, and controlling shareholder. Zuckerberg launched Facebook in 2004 while attending Harvard University, initially as a way for students to connect. The platform rapidly grew into a global phenomenon, revolutionizing online social interaction and digital advertising. He has since overseen Meta's expansion into virtual reality and the metaverse, solidifying his position as a leading figure in the technology industry.