Why do you need to put "\n" in this magic method?

Question

Why do you need a "\n" when doing this class magic method?

class SpecialString:
def __init__(self, cont):
self.cont = cont

def __truediv__(self, other):
line = "=" * len(other.cont)
return "\n".join([self.cont, line, other.cont])

spam = SpecialString("spam")
hello = SpecialString("Hello world!")
print(spam / hello)

Answer 1

"join" appends to "self.cont" "line" and "other.cont" through the character "\n" - a new line.

Answer 2

Yes

Answer 3

so "\n" means a new line?