However, they were unaware of each others work due to World War I.
In total, over 1200 former students served as commissioned officers during World War I.
World War I, and the disillusionment that followed, further shaped modernist views of human nature.
A large spike in the third group was pre-World War I.
By the turn of the century, many cabins and, just prior to World War I, a few resorts were built.
The company soon began building gasoline-powered locomotives of their own following World War I.
About 400 men from the colony served in the French military during World War I, 25% of whom died.
Among the new products were ammunition-box liners for the military during World War I.
Intense debate continues among scholars, see Causes of World War I.
So began the American entry into World War I.