Describe the bug
The following reference link on the PEP 3104 page is broken:
http://www.python.org/search/hypermail/python-1994q1/0301.html

To Reproduce
Steps to reproduce the behavior:

Go to https://www.python.org/dev/peps/pep-3104/
Click on the link in the first reference. The link is: http://www.python.org/search/hypermail/python-1994q1/0301.html
The following error is seen: Error 404: File not Found

Expected behavior
Expected to go to a page such as this one and not see the 404 error.

Desktop (please complete the following information):