On March 21, 2006, Jack Dorsey posted a simple message: “just setting up my twittr”.

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Twitter turned 20 years old on March 21, 2026, marking the anniversary of Jack Dorsey's first tweet: 'just setting up my twittr.' The platform, now rebranded as X under Elon Musk's ownership, has undergone dramatic changes including massive layoffs, integration of the Grok AI chatbot amid controversies, and a merger into SpaceX via xAI. X faces growing competition from Bluesky and Threads, with the latter reportedly surpassing X in daily mobile users. Meanwhile, Dorsey's original tweet, once sold as an NFT for $2.9 million, has nearly lost all its value.

It’s been 20 years since the first tweet