The Origin of Zero

The thing that srikes me about the article it that they say the it was just made to help people see the diffrence form 1,10,1000 and so on. So in a way many people created Zero. So we cant say that any one created zero. But i do think that Some one elce came up with the concept of zero and the person who discovered the actual number are diffrent people. So travelers took the concept of zero with them on their travels, so it spread