Prior to statehood, territorial counties maintained Nevada records.
In 1864 Montana Territory was created, and in 1889 this Territory was admitted to statehood.
During the colonial period and the early years of statehood the legislature was composed of one house, but the bicameral system was adopted in the constitution of 1790.
Agitation for statehood became prominent in territorial politics for some years.
In August 1821, after three years of bitter controversy, Missouri was formally admitted to statehood.