As you may be aware Debian wheezy has now been fully end of lifed (including lts) by Debian.
As a result I am moving a number of legacy and mostly wheezy-related materials from archive.raspbian.org to legacy.raspbian.org.
This includes the complete contents of the following directories.
The "mate" directory does contain some packages that were aimed at jessie, however before the jessie stable releases these were superseded by mate packages in jessie proper.
It also includes the wheezy and wheezy-staging suites in the main raspbian repo.
legacy.raspbian.org is live now. The materials in question will be removed from archive.raspbian.org/mirrordirector.raspbian.org/raspbian.raspberrypi.org in a week or so.