An example of the information technology: <a href="https://en.wikipedia.org/wiki/Aztec_code" class="extiw" title="w:Aztec code">Aztec code</a>, a two dimensional <a href="https://en.wikipedia.org/wiki/barcode" class="extiw" title="w:barcode">barcode</a> or <a href="https://en.wikipedia.org/wiki/matrix_code" class="extiw" title="w:matrix code">matrix code</a> developed in the United States. Aztec Code was invented and patented by Andrew Longacre, Jr. of Welch Allyn Inc. in 1995 and used commercially from 1997, though later released into the public domain.<br>When decoded this Image contains "This is an example Aztec symbol for Wikipedia."<br><a href="//commons.wikimedia.org/w/index.php?title=Category:Code_type&amp;action=edit&amp;redlink=1" class="new" title="Category:Code type (page does not exist)">Aztec code</a> is a competing public domain alternative product of <a href="//commons.wikimedia.org/wiki/Category:QR_code" title="Category:QR code">Category:QR code</a> of information technology products.
<a href="https://en.wikipedia.org/wiki/User:Fauthd" class="extiw" title="wikipedia:User:Fauthd">Fauthd</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a> (No longer listed as user when checked 2008-07-15)
31 August 2005 (original upload date)
Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons.