After southern New Mexico had seceded from the Union as the
Confederate Territory of Arizona in 1861, the land that will later
form the basis for the State of Arizona is now organised by the
Unionist government in Washington DC.
Citation:
Editors. "Arizona organised as US territory".
The Literary Encyclopedia. First published 30 December 2011
[http://www.litencyc.com/php/stopics.php?rec=true&UID=18449, accessed 21 May 2013.]