How did the world began

There are many story's told about how the world was made.The most common legend is called Evolution, when monkeys turned into men.This may be true but how do we know but that's only about mankind.What about the earth what, about the universe, Was there a big bang in a white space made out of nothing,was there a god that created everything, The big question is how and why was the universe made.When I was 3 I thought how was the earth made, how does the earth float but tonight I wonder how the universe was made.
Mista smith