Single stories negatively relate to U.S. history because it caused a lot of hate to be given toward a specific person or group of people just because someone made up a fake story. Single stories have always been a problem not just now but all throughout history.
It employed the best map makers available.
On-the-job training was accomplished on successive trips down the coast of Africa.
im pretty sure it was the Keatintg-Owen Child Labor Act
hope this helps <3