Airplanes were vital for ww1 to ease transport of amo and soon guns on the planes including bombs this made it easier for to launch quick air strikes on places like bases vulnerable to air strikes
However, determining the precise beginning and ending to any "period" is often arbitrary, since it has changed over time over the course of history.
Answer:
More than 22 million new jobs, highest home ownership in American History
<span> that it is better than Birkenau </span>
