The American Legion’s centennial birthday is about the nearly 2 million members who carry out the duties of the nation’s largest veterans service organization.
On that date in 1919, the first American Legion caucus, held by members of the American Expeditionary Force, convened in Paris. Much as the birthday of the United States is celebrated on July 4 - for the date in 1776 when patriots declared the independence of the British colonies and birthed the spirit of America - March 15 is the date when The American Legion came to life.