This section of the timeline of United States history concerns events from 1860 to 1899.
The Department of the Pacific or Pacific Department was a major command (Department) of the United States Army from 1853 to 1858. It replaced the Pacific Division, and was itself replaced by the Department of California and the Department of Oregon.
The Department of the Missouri was a command echelon of the United States Army in the 19th century and a sub division of the Military Division of the Missouri that functioned through the Indian Wars.
The Department of the Platte was a military administrative district established by the U.S. Army on March 5, 1866, with boundaries encompassing Iowa, Nebraska, Dakota Territory, Utah Territory and a small portion of Idaho. With headquarters in Omaha, the district commander oversaw the army's role initially along the Overland route to Salt Lake City, then later the construction route of the Union Pacific Railroad. The district also included the Montana road through eastern Wyoming. The district was discontinued when the Army's command was reorganized in 1898.
George Morton Randall was a major general in the United States Army, noted for his service in the American Civil War and Indian Wars. He was born in Conneaut, Ohio, the son of Brewster Randall (1807–1880) and Harriet Eliza Fifield Randall (1819–1878).
A subdivision of the Division of the Missouri, the Department of Dakota was established by the United States Army on August 11, 1866, to encompass all military activities and forts within Minnesota, Dakota Territory and Montana Territory. The Department of Dakota was initially headquartered at Fort Snelling, Minnesota, and then moved to Saint Paul in March 1867. The 18th Infantry Regiment would serve in Dakota several times. From 1869-1877 the 20th Infantry Regiment was posted to the Department. In 1879 the Department returned to the Fort until 1886 at which time it moved back to downtown Saint Paul. The department was discontinued in 1911.
The District of Oregon was a Union Army command department formed during the American Civil War.
The Department of New Mexico was a department of the United States Army during the mid-19th century. It was created as the 9th Department, a geographical department, in 1848 following the successful conclusion of the Mexican–American War, and renamed Department of New Mexico in 1853. It had to contend with an invading Confederate force during the New Mexico Campaign of the American Civil War from mid-1861 to early 1862, then with Apache tribes during the remainder of the conflict. It was merged into the Department of California after the end of the war as the District of New Mexico.
The District of California was a Union Army command department formed during the American Civil War. The district was part of the Department of the Pacific, the commander of the department also being District commander. The district was created as a separate command on July 1, 1864, after Irvin McDowell took command of the Department of the Pacific, relieving General Wright, who then remained as District of California commander. The District comprised the state of California and the areas of the Rogue River and Umpqua River in Southern Oregon. Its headquarters were in San Francisco, co-located with those of the Department of the Pacific. On March 14, 1865, the District of Oregon was extended to include the entire state of Oregon, removing the Rogue River and Umpqua River areas from the District.
District of Arizona was a subordinate district of the Department of New Mexico territory created on August 30, 1862 and transferred to the Department of the Pacific in March 1865.
The Department of California was an administrative department of the United States Army. The Department was created in 1858, replacing the original Department of the Pacific, and it was ended by the reorganizations of the Henry L. Stimson Plan implemented in February 1913. As with the preceding organization, headquarters were in San Francisco. Its creation was authorized by General Orders, No. 10, of the War Department, Adjutant-General's Office, September 13, 1858.
The Department of the Columbia was a major command (Department) of the United States Army during the 19th century.
The Yavapai Wars, or the Tonto Wars, were a series of armed conflicts between the Yavapai and Tonto tribes against the United States in the Arizona Territory. The period began no later than 1861, with the arrival of American settlers on Yavapai and Tonto land. At the time, the Yavapai were considered a band of the Western Apache people due to their close relationship with tribes such as the Tonto and Pinal. The war culminated with the Yavapai's removal from the Camp Verde Reservation to San Carlos on February 27, 1875, an event now known as Exodus Day.
Joseph Nelson Garland Whistler was a career United States Army officer. He served in the Mexican–American War and received a brevet appointment for distinguished service in the Battle of Contreras and the Battle of Churubusco. At the beginning of the American Civil War, Whistler was among the U.S. Regular Army officers taken prisoner by Confederates in Texas in April 1861 and paroled but was not exchanged until August 15, 1862. In 1863, he became colonel of the 2nd New York Heavy Artillery Regiment. He received a promotion and four brevet appointments in the regular army for his service during the Overland Campaign, specifically the Battle of North Anna, and the Siege of Petersburg, specifically the Second Battle of Petersburg. He was nominated on January 13, 1866 and confirmed on March 12, 1866 for appointment to the grade of brevet brigadier general of volunteers, to rank from March 13, 1866. He retired in on October 19, 1886 as colonel of the 15th U.S. Infantry Regiment.
Charles Seaforth Stewart was a colonel in the United States Army Corps of Engineers. He graduated first in his West Point Class of 1846, which included future generals George McClellan, Stonewall Jackson, and George Pickett.
The District of New Mexico was a military district of the United States Army in the Territory of New Mexico that existed from 1865 to 1890. The District of Arizona and the District of New Mexico replaced the Department of New Mexico from June 27, 1865.
Henry Erastus Noyes was a United States Army Officer who served during the American Civil War, American Indian Wars and Spanish American War.
John S. Poland was a career officer in the United States Army. A Union Army veteran of the American Civil War, he also served in the American Indian Wars and the Spanish–American War. Poland attained the rank of brigadier general and was most notable for his command of the 17th Infantry Regiment and 2nd Division, First Army Corps.
