Japan was able to recover so fast due to the Korean War. There was a huge surge of United Nation and United States troops that provided money and jobs. Japan was able to serve as a repair hub as well as a logistics base during that time.
Muhammed Avdol from Jojo's Bizarre Adventures
<span> Periodization can help historians know when an event occured. This can also help historians learn the cause and effect of another time in history.</span>
The answer would be : a convention.
Hope this helps !
Photon
I really don’t know that answer but hope u find it