By Sarah Begley
Twitter is celebrating its ninth anniversary on Saturday, and to commemorate the occasion, the social media site put together 10 of the most important tweets in its history.
The list acts as a potted history of the site, spanning early attempts to define the platform (co-founder Jack Dorsey’s first tweet; the first use of a hashtag), major news moments that played out on the service (Sohaib Athar’s observation of a helicopter over Abbottabad during the Osama bin Laden raid) and celebrity moments (Ellen Degeneres’s Oscar selfie, the most-retweeted tweet of all time).
Watch the timeline play out in the tweets below.
[Twitter]
Read next: Old Tweets Prove Dangerous for 2016 Campaign Staffers
See What Your Twitter Profile Looked Like Over the Last 10 Years
More Must-Reads from TIME
- Donald Trump Is TIME's 2024 Person of the Year
- Why We Chose Trump as Person of the Year
- Is Intermittent Fasting Good or Bad for You?
- The 100 Must-Read Books of 2024
- The 20 Best Christmas TV Episodes
- Column: If Optimism Feels Ridiculous Now, Try Hope
- The Future of Climate Action Is Trade Policy
- Merle Bombardieri Is Helping People Make the Baby Decision
Contact us at letters@time.com