One event that changed the world. -What was the event? What happened?

-How were things different before and after this happened?

“the battle of stalingrad is not a turning point necessarily in strategic terms, because a lot more has to be done before the soviets can be certain of defeating germany,” says renowned world war ii historian richard overy. the germans had fought nearly a thousand miles across the soviet union to get to stalingrad.

a. theta waves. this is because the person is in a light sleep which means the brain waves would show these kind of waves.