On December 19, 2012 Twitter introduced the ability to download your Twitter archive, so you’ll get all your Tweets (including Retweets) going back to the beginning. Once you have your Twitter archive, you can view your Tweets by month, or search your archive to find Tweets with certain words, phrases, hashtags or @usernames. You can even engage with your old Tweets just as you would with current ones.
What was your first Tweet? Share it with us! Here are instructions on how to download your Twitter archive: support.twitter.com/articles/20170…
— Support (@Support) December 19, 2012
Because the feature is available only to a small subset of users, there’s a chance you won’t see the button yet.
Here is how to download your Twitter archive.