<span>The mountains and deserts in western and southwestern China slowed the exchange of ideas</span>
The Zimmerman telegraph, was a telegraph from Germany to Mexico proposing an alliance in which Germany would give the land that Mexico lost to the United States if the Mexican people would fight the United States and keep them out of the war
The control unit for an artificial heart was invented by Otis Frank Boykin.
The answer will be setting because the reader will have a different mindset when they see the setting of the story
