LINEAGE
The history of the 8th Infantry begins in 1895. Below is a detailed listing of the units lineage.
| ........Date......... | ..............................Event......................................... |
| 4 Nov 1895 | Organized in the Illinois National Guard as 9th Battalion, Infantry , at Chicago |
| 28 Jun 1898 | Expanded and redesignated as 9th Regiment of Infantry, Illinois Volunteers |
| 22 Jul 1898 | Mustered into Federal service at Springfield as 8th Illinois Volunteer Infantry |
| 3 Apr 1899 | Mustered out of Federal service at Chicago |
| 18 Apr 1899 | Reorganized as 9th Infantry Battalion |
| 6 May 1899 | Redesignated as 8th Infantry Battalion |
| 1902 | Expanded, reorganized, and redesignated as 8th Infantry |
| 30 Jun 1916 | Mustered into Federal service for service on the Mexican border |
| 27 Oct 1916 | Mustered out. |
| 5 Aug 1917 | Drafted into Federal service. |
| 1 Dec 1917 | Reorganized and redesignated as 370th Infantry, an element of the 93rd Division |
| 11 Mar 1919 | Demobilized at Camp Grant, Illinois. |
| 1919-1921 | Reorganized as 8th Infantry |
| 22 Aug 1921 | Headquarters Federally recognized at Chicago |
| 6 Oct 1940 | Converted, reorganized, and redesignated as 184th Field Artillery. |
| 6 Jan 1941 | Inducted into Federal service at Chicago |
| 6 Jan 1943 | Regiment broken up and element disbanded or reorganized and redesignated as follows: Headquarters and Headquarters Battery and Band disbanded; 1st Battalion as 930th Field Artillery Battalion; 2nd Battalion as 931st field Artillery Battalion |
| 28 Feb 1944 | 930th Field Artillery Battalion converted, reorganized, and redesignate as 1699th Engineer Combat Battalion |
| 25 Sep 1945 | 1699th Engineer Combat Battalion Inactivated in Germany |
| 20 Mar 1944 | 931st Field Artillery Battalion converted, reorganized, and redesignated as 1698th Engineer Combat Battalion. |
| 25 Sep 1945 | 1698th Engineer Combat Battalion inactivated in Germany |
| 25 Aug 1945 | Headquarters and Headquarters Battery and Band, 184th Field Artillery reconstituted. |
| 1947 | Elements of former 184th Field Artillery converted, consolidated, expanded, and redesignated as 178th Infantry and as 184th Field Artillery Battalion, 1698th Engineer Combat Company, and 154th Army Band |
| 31 Mar 1947 | 178th Infantry reorganized and Federally recognized at Chicago |
| 1 Mar 1959 | Reorganized as a parent regiment under the Combat Arms Regimental system, to consist of 1st Battle Group, 178th Infantry |
| 1 Apr 1963 | 178th Infantry and 184th Artillery consolidated and consolidated unit designated as 178th Infantry, a parent regiment under the Combat Arms Regimental System, to consist of 1st and 2nd battalions |
| 1 Feb 1968 | Reorganized to consist of the 1st Battalion, concurrently, 1st battalion assigned to the 47th Infantry Division |
