The AES Journal officially began in 1953, but the Online Journal wasn't created until December 2001. This page includes links to the complete issues of all those earlier Journal issues if you'd like to see them in their original format. (Many thanks to Jay McKnight and the AES Historical Committee for compiling these materials!)
To read newer issues you can visit the Online Journal where you'll find every issue starting with Volume 49 Issue 12.
How the Audio Engineering Society Began, and Volume 0 of the AES Journal - 1947...1952