Phoenix, Arizona supplied both water and electricity, becoming the first multi-purpose dam, and Roosevelt himself attended the official dedication on May 18, 1911. At the time, it was the largest masonry dam in the world, forming a lake in the mountain east of Phoenix. The dam would be renamed after Teddy Roosevelt in 1917, and the lake would follow suit in 1959. On February 14, 1912, Phoenix became a state capital, as Arizona was admitted to the Union as the 48th state under President William Howard Taft. This occurred just six months after Taft had vetoed a joint congressional resolution granting statehood
Admission to the Union which predate the present U.S. Constitution. The Admission to the Union Clause also forbids the creation of new states from parts of existing states without the consent of both the affected states and Congress. The primary intent of this caveat was to give Eastern states that still had western land claims (there were four at that time) a veto over whether their western counties could become states. This clause has served the same function since, each time a proposal to partition an existing state or states has arisen. Article IV, Section 3, Clause 1: Between 1781 and 1789 the United