World War I was a proving ground for the world's first tanks and armored vehicles, rife with engineering successes and failures from various countries.
Caterpillar, or CAT as it's known today built some of the earliest tracked vehicles in WWI. Here's how that happened, and how it inspired today's tanks.
The merger of U.S. Steel and Nippon Steel would result in a more competitive steel industry and enhance jobs in the industry as well as other industries that use steel.