Colorado, "The Centennial State" was admitted to the Union in this year
The name... [DOC] [TLE] August 1, 1876  Colorado is admitted as the 38th U.S. state ... [PAR] Colorado is nicknamed the "Centennial State" because it was admitted to the 
Union in 1876, the centennial year of the United States... [DOC] [TLE] Monday is Colorado Day, and here's how to celebrate | 9news.com [PAR] Aug 1, 2016 ... Our favorite state turns 140 years old on Monday, and as usual, it's celebrating in 
style.