[pushcx]

Rails's public release was July 2004: https://rubytalk.org/t/ann-rails-0-5-0-the-end-of-vaporware/...

Django's was July 2005: https://www.djangoproject.com/weblog/2005/jul/15/chipy/

[etothet]

Adding Simon Willison's announcement: https://simonwillison.net/2005/Jul/17/django/