From Twitter to X: the changes behind the names

Twitter began in 2006. The service that called its messages tweets now calls them posts and uses the name X. Those labels describe the same platform across different periods; an old article saying Twitter may still describe an account or conversation you recognize today.

The useful history is more than a sequence of logos. Each change affected how people wrote, found conversations or shared media. Here are four milestones, with the historical announcements separated from advice about using the service today.

2006: short messages became the format

Twitter's own anniversary retrospective dates its first post to 2006, when the service used the name Twttr. Early messages were limited to 140 characters. That constraint explains the clipped writing you find in old screenshots: people had less room for a setup, an example and a conclusion.

When reading an old tweet, keep its date visible. A screenshot can preserve the words while losing the replies, corrections and circumstances around them. An announcement that made sense at publication may describe an interface or rule that has since changed.

2007: a way to group conversation

The same retrospective credits Chris Messina's 2007 proposal to use hashtags for people at the same live event. A tag gives several posts a shared label. It does not establish whether every post using that label is reliable, relevant or made by someone at the event.

This matters when researching older conversations. Search the name of the event as well as its tag. People may discuss the same story using different words, and a tag can attract unrelated posts. Keep a note of which accounts were participants and which were commenting afterward.

2017: more room to write

On November 7, 2017, Twitter announced the expansion to 280 characters for languages affected by its test. The announcement excluded Japanese, Chinese and Korean from that expansion. The old 140-character number therefore belongs to a particular period, while the 280-character announcement also needs its language context.

Longer room does not require a longer message. A useful editing question survives either limit: what does the reader need to understand this post without opening another tab? A date, source or explanation often deserves the space more than an introductory sentence.

2023: the X name

The company's August 2023 timeline records the introduction of X on July 24, 2023. That is a branding milestone, not a reliable date for every feature that appeared around it. Subscriptions, video options and account labels followed their own changes.

Use historical announcements to explain what happened then. For today's upload limits or controls, check the current controls for your account instead of copying numbers from the timeline. A company retrospective is a primary account of its announcements, but it is also the company's presentation of its own history.

Keep the original context

If you use a historical post in a presentation or article, preserve its URL, date and attribution alongside the excerpt. Describe screenshots as screenshots; don't treat them as proof that the original is still available. For video research, keep a source note even when you are authorized to retain the media. The post's text may explain details that the clip leaves out.