11/29/1864
At Sand Creek in Colorado, territorial volunteers attack encamped Cheyenne and Arapaho, killing hundreds Crime/Disasters
11/13/1860
Golden become the capital of the unsanctioned "Territory of Jefferson" Lawmaking/Litigating
06/06/1859
Horace Greeley arrives in Denver on his tour of the West Cultural
05/15/1859
Horace Greeley arrives in Kansas on his tour of the West Cultural
05/09/1859
Horace Greeley sets off from New York on his tour of the West Cultural
08/29/1860
In Texas, Oliver Loving sets out on the first cattle drive into the Colorado Territory Business/Industry
07/25/1865
- 07/26/1865
In Wyoming, a thousand Cheyenne warriors attack the immigrant transport link at Platte Bridge Battles/Soldiers
02/28/1861
President Buchanan signs the Colorado Territory into existence Lawmaking/Litigating
05/10/1859
Prospector makes the richest gold discovery yet in Colorado Business/Industry
