Today in History, Oct. 21

Today is Saturday, Oct. 21, the 294th day of 2017. There are 71 days left in the year.

Today’s highlight in history:

In 1917, members of the 1st Division of the U.S. Army training in Luneville, France, became the first Americans to see action on the front lines of World War I.

On this date:

In 1941, superheroine Wonder Woman made her debut in All-Star Comics issue No. 8, published by All-American Comics Inc. of New York.