Today in history:

It was on this day in 1940 that 75,000 men were called to Armed Forces duty under the first peacetime conscription in American history.

[...] Franklin Roosevelt's decision to impose a draft in the summer of 1940 was especially controversial because the country wasn't even at war. But Americans had all seen newspaper and newsreel coverage of the German Army rolling over Poland in a few weeks, and doing the same in France in a few months. By June of that year, Germans controlled most of the European continent, and the United States had a poorly trained standing army of only about 200,000 soldiers.

So even though he worried it might hurt his chances of reelection that November, Franklin Roosevelt signed into law the first peacetime draft in American history. That October, 16 million young men appeared at precinct election boards across the country to register with the Selective Service. The first lottery was held in Washington, D.C., and it was designed to be as patriotic a ceremony as possible. Secretary of War Henry Stimson was blindfolded with cloth taken from a chair that had been used at the signing of the Declaration of Independence, and the ladle he used to scoop out numbers had been made from the wood of one of the rafters of Independence Hall.

The Writer's Almanac from American Public Media