During the 19th and early 20th centuries, many men spent their lives traveling from town to town selling Bibles, encyclopedias and home goods. The job was so much a part of the U.S. economy that the ...

Almost 90 US B-29 bombers dropped about 6,000 tons of napalm on Kumagaya, Japan, on the night of August 14-15, 1945. Eighty ...