where did money came from?

??

where did money came from?
certainly there's some places and someone senior who is incharge of printing money.

global crisis. worlds' major problem.
why the machine cannot produce more money.
just print. very easy. printer, paper and ink.
why cant?

im not trying to be funny but come to think about it, who and when can the machine produce money?

Chinese new year?
If the world agreed to print more money, all problem will be solved.

Economy growth, the number of population are increasing each year, in any country. definately more and more money must be pumped in to be spent.
then?

how and when money can be printed?

i did some research online but the fact does not really make sense to me.

but if printing money is so easy, what will happen to the world?
but when can money be printed?