Which phrase is the opposite in meaning from "regularly unite"?

[v]ast numbers of our people are compelled to seek their livelihood by begging, robbing, stealing, cheating, flattering, suborning, forswearing, forging . . which satirical element is most dominant in the passage above?

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were wealthy people. they needed some way to keep track of what they owned. they began drawing pictures. they used a reed as a pen. they drew on soft pieces of clay. the soft clay was then dried in the sun. the tablet became a permanent record. later, the sumerian drawings changed into wedge-shaped symbols. this kind of writing is called cuneiform. by putting symbols together, the sumerians could write entire sentences.

How do i correct this sentence correctly?