What does the author mean when she says Smith and Chief Powhatan are engaged in a “dance of a sword fight” on p. 175?

How would you write "the fourth of july? " the 4th of july or the fourth of july? are they both grammatically correct?

The greatest gift the sumerians gave the world was the invention of writing. the sumerians were a 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.

Which lines in this excerpt from act b of shakespeare macbeth tell the audience that macbeth realizes his mistake and regrets his ambition