The Arizona Organic Act was a United States federal law introduced as H.R. 357 in the 2d session of the 37th Congress on March 12, 1862, by Rep. James M. Ashley

James Mitchell Ashley

James Mitchell Ashley was a U.S. congressman, territorial governor and railroad president.-Early life:...

 of Ohio

Ohio

Ohio is a Midwestern state in the United States. The 34th largest state by area in the U.S.,it is the 7th‑most populous with over 11.5 million residents, containing several major American cities and seven metropolitan areas with populations of 500,000 or more.The state's capital is Columbus...

. The Act provided for the creation of the Arizona Territory

Arizona Territory

The Territory of Arizona was an organized incorporated territory of the United States that existed from February 24, 1863 until February 14, 1912, when it was admitted to the Union as the 48th state....

 by the division of the New Mexico Territory

New Mexico Territory

thumb|right|240px|Proposed boundaries for State of New Mexico, 1850The Territory of New Mexico was an organized incorporated territory of the United States that existed from September 9, 1850, until January 6, 1912, when the final extent of the territory was admitted to the Union as the State of...

 into two territories, along the current boundary between New Mexico and Arizona. On February 24, 1863, President Abraham Lincoln

Abraham Lincoln

Abraham Lincoln was the 16th President of the United States, serving from March 1861 until his assassination in April 1865. He successfully led his country through a great constitutional, military and moral crisis – the American Civil War – preserving the Union, while ending slavery, and...

 signed the bill once it had been approved by Congress

United States Congress

The United States Congress is the bicameral legislature of the federal government of the United States, consisting of the Senate and the House of Representatives. The Congress meets in the United States Capitol in Washington, D.C....

.