Answer:
US factories produced aircraft for the war effort.
US troops at the front relied on trucks to keep them supplied.
Explanation:
The cultures that were mummifying people may have gotten supplies and had trade routes with Shang China.
There were several events that led up to the creation of NASA, but the biggest was the space race with Russia, which was especially heightened after Sputnik.
I think its either the second or the last hope this helped :)
