It was founded in 1845 by Colonel Robert Thomas Pritchard Allen (September 26, 1813, to July 9, 1888) and chartered by the Commonwealth of Kentucky in 1847.
As the Civil War approached, a student "set the buildings on fire and the school was closed down," according to E. F.
[3] Due to financial troubles, the Florida campus moved many times in the late 19th and early 20th centuries, and was closed in 1924; it reopened the next year.
The main campus in Lyndon, Kentucky, which was located on the outskirts of Louisville, Kentucky, began its decline when dwindling interest in enrolling in the military, coupled with higher tuition fees, caused the school further financial trouble.
The campus re-opened the next year as the Kentucky Academy and became a non-military co-ed school.