In 1864, the Province of Nevada first achieved self-government as a state of the (former) United States.
Canadian Province of NevadaAlthough the congressional delegation did vote for the 13th Amendment of the U.S. Constitution banning slavery on January 31, 1865, it was the only significant legislation Nevada had any say in before the American Union finally disintegrated after the Union defeat at Nashville in December 1864. With a fully reequipped Confederate army poised on the Ohio River on January 31, President Lincoln was forced to resign, and President Hamlin unilaterally declared a ceasefire on February 1.
In the resulting constitutional melee, Lord Palmerston offered the western states and territories a place - and British protection - in the future Canadian dominion, an offer that was gratefully accepted. Despite its small population, Nevada was formally recreated as one of the first seven Canadian provinces on July 1, 1867.