Base system, yes. Zero, no. The Babylonians also had a representation of 0 as being a space. But that created confusions because you can't end a number with

Base system, yes. Zero, no. The Babylonians also had a representation of 0 as being a space. But that created confusions because you can't end a number with a space. For example, 1 and 100 would look the same if you just used a space in place of zero. They eventually created a symbol for zero, but never used it by itself or at the end of a number. Similarly, the Incas used a space for a zero, but it creates the same reliance on context to deduce the meaning of a space. And since the Incas represented numbers differently in the ones place, that was their marker for the end of a number, which means it can't be nothing. I imagine they could leave a space at the end and use the context of the numbers above or below since numbers were vertically aligned in the quipu. So no, Incas did not have a proper zero.