Where did numbers come from??

I had been curious about the answer to this question for a very long time when I was a kid! but I forgot about it as I grew older.

But when I was in 11th std. I came across the concept of Complex numbers, which was completely against my understanding of numbers (or any other kid in 11th std. for that matter). It was because it had a number ‘i’ which was equal to the square root of ‘-1'. For me, it was…