They are both, I believe, considered megapolis's
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.
The differences between the Mughal and the Ottoman Empires is that the Ottomans had a majority Christian region, while the Mughals were ruling over Hindu majority region.
When USA stopped selling oil and scrap metal to Japan.
Japan got slowed down in CBI.