Why was World War II called World War II?

Question

Why was World War II called World War II?

Answer 1

ww3 was taken, wtf?

Answer 2

It should actually be called WWIX or something like that, but i think it was more the amount of technology and manpower commitment that makes it so

Answer 3

Probably because it came after WWI

Answer 4

because world war 1 was taken, actually the Russians called it the Great Patriotic War

Answer 5

World War I was already taken, I guess they decided to go in numerical order.

Answer 6

Because it was the second full-scale war which involved nations other than the 2 original nations at odds.

Answer 7

So far, all the answers are incorrect. It is WWII because it is basically a continuation of the Great War (WWI).  The most common cause for WWII that historians cite is WWI.

Answer 8

Because it was the second war that the world fought in.