Similarities were their geography, religion, temples and technology. Differences are the way they approached death and prepared for the afterlife, their religion, and the Sumerians were one of the first peoples to develop a system of writing.
Take notes as you study.
Always re-read anything that seems to confuse you at all.
Think about the end points and the start points of anything you're trying to learn. (Helps with memorizing)
~mathnerdz
Unlimited liability-this is by far the greatest disadvantage to the proprietorship. Even though proprietors may invest only part of their capital in the business, they remain personally liable to the full extent of their assets for the liabilities of the business.
Lewiston, John P. is the correct way to list the author, John P Lewiston