How were the Sumerian social classes
different from those in the United States?

How were the Sumerian social classes different from those in the United States today? Unlike the Sumerian social class structure, we do not have slavery. Why did the Akkadians and other invaders adopt Sumerian culture?
(Google)

You can drink laxative, or  do this exercise when you are sitting in the bathroom on the toilet. to relieve  constipation  fast or in about 1 minute, pinch your nose after your usual exhalation. start holding your breath. but do not mouth breath during this just hold your breath.