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| Book cover | Autor | Title | Description |
| Bild | Autor | Leer | Beschreibung |
| Date | Event | Tribe | Chief |
22 June 1852  | Fort Massachusetts was built in southern Colorado. The aim of the fort was to finally force the Ute, who had signed the treaty in 1849, onto the reservation through military presence. Until then, the southern Utes were still free despite the treaty. The Ute, who had not signed the treaty, ruled with raids. The construction of the fort led directly to the Ute War of 1854-1855, and the fort was abandoned on June 24, 1858 in favor of the newly built Fort Garland. The location was poorly chosen and the fort's garrison was very ill.   | Ute | - |
| 24 June 1858 | Almost the entire garrison of Fort Massachusetts moved to the new Fort Garland. Fort Garland was rebuilt about 6 miles south of Fort Massachusetts. | Ute | - |
| 1858 | Fort Garland was built in southern Colorado to protect the first American settlers in the San Luis Valley. Fort Garland replaced Fort Massachusetts, which had been built just 6 miles to the north in 1852. | Ute | - |
| 1858 | After the War of 1812, the War Department began planning for the construction of an extensive system of strong fortifications for coastal defense. Ship Island's natural deep-water harbor and location on a shipping route made it important for the defense of New Orleans and the Gulf Coast. | - | - |