October 17 - A group of gold prospectors from Fort St. Vrain 30mi. to the east camp in Red Rocks on Boulder Creek in modern-day Settler's Park at the mouth of Boulder Canyon. This was in Arapaho territory, near the camp of Southern Arapaho chief Chief Niwot (Left Hand) (1825–64) in Valmont Butte. Chief Niwot rode to their camp to warn them to leave, but changed his mind after being given food and liquor. He welcomed the visitors, but not before uttering the Curse of the Boulder Valley: "People seeing the beauty of this valley will want to stay, and their staying will be the undoing of the beauty."[1][2]
The first mayor, Jacob Ellison, is elected for a two-month term.[3]
January - Mary Rippon, first female professor at the University of Colorado, joined the faculty.
1880 - The town passes the 3,000 population mark, making it eligible for incorporation.[10]
1882
April 3 - Boulder is incorporated as a 2nd class town, and later that month a new town hall is completed in time for the first meeting of the city council.[10]
1942 - US Navy School of Oriental Languages moves from California to Boulder and begins training recruits to the US Navy and the Marine Corps in Japanese.[16]
Quarto-centennial celebration, University of Colorado, November 13, 14 and 15, 1902, Boulder, Colo, Boulder, Colorado: Regents of the University of Colorado, 1902, OL24860692M
"A Boulder Timeline". Boulder History Museum. Archived from the original on October 10, 2014. Retrieved January 17, 2010.{{cite web}}: CS1 maint: unfit URL (link)
Roger V. Dingman, Deciphering the Rising Sun: Navy and Marine Corps codebreakers, translators, and interpreters in the Pacific War (Annapolis, MD: Naval Institute Press, 2009).
Patricia A. Langelier (1996). "Local Government Home Pages". Popular Government. 6 (3). University of North Carolina at Chapel Hill: 38+. ISSN0032-4515. Special Series: Local Government on the Internet