U.S. President Woodrow Wilson signs National Defense Act

On June 3, 1916, the National Defense Act established the Reserve Officers Training Corps. From the article:

"The National Defense Act mandated that the term National Guard be used to refer to the combined network of states’ militias that became the primary reserve force for the U.S. Army. The term had first been adopted by New York’s militia in the years before the Civil War in honor of the Marquis de Lafayette, a French hero of the American Revolution who commanded the Garde Nationale during the early days of the French Revolution in 1789. The National Defense Act also set qualifications for National Guard officers, allowing them to attend Army schools; all National Guard units would now be organized according to the standards of regular Army units. For the first time, National Guardsmen would receive payment from the federal government not only for their annual training—which was increased from 5 to 15 days—but also for their drills, which were also increased, from 24 per year to 48. Finally, the National Defense Act formally established the Reserve Officer Training Corps (ROTC) to train and prepare high school and college students for Army service."