# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2017-12-04 08:01:08 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/937592592384102400) RT @tkremenek: Two years ago today Swift became open source. Thank you to everyone who has (and continues) to contribute to Swift to make…