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The launch of SixDegrees.com, the first recognized social media site, allowing users to create profiles and friend others.

The creation of Facebook at Harvard University, which later became the most widely used social media platform globally.

The founding of YouTube, a video sharing platform that revolutionized how people share and consume video content.

TikTok becomes the fastest growing social media app, known for its short-form videos, with significant influence on music, trends, and popular culture.

Snapchat is launched, introducing ephemeral content with photos and videos that disappear after viewing.

Twitter launches, introducing microblogging and the use of hashtags to the world.

Instagram is released, popularizing the use of filters and the rise of influencer culture.

Twitter doubles its characteristic tweet limit to 280 characters.

The debut of Myspace, which became the largest social networking site from 2005 to 2008 and influenced many social media practices.