[wesleytodd]

yeah I got confused seeing this on the top. in my head said "what is this, 2012?". Am I wrong this existed way before 2017?

edit: I am correct, it is much more old. https://github.com/heroku/12factor/graphs/contributors

[larsnystrom]

First commit was 2011.

[webmaven]

The 12 factors go back even further, to Joel Spolsky's "Joel Test" in 2000:

https://www.joelonsoftware.com/2000/08/09/the-joel-test-12-s...

[richardwhiuk]

That's a rather different set of 12 factors.