WONDER #1652: Who Invented the Zero?
Question 1 of 3
Before the invention of the zero, what did scribes use to denote absences in number columns?
Question 2 of 3
The first recorded use of a symbol for zero dates back to the 3rd century in what ancient civilization?
Question 3 of 3
The idea of zero was around for a long time before people started thinking of it as an actual what?
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