I first tried asking this question on https://math.stackexchange.com/. The question was marked as off-topic on the Math site.
Why do South Asians often use "lakhs" and "crores" instead of "millions"? What is the historical origin of this redundancy?
I noticed that South Asians often write 10,00,000 instead of 1,000,000. My questions are:
- What is the origin of this special numbering system? Was there a more practical reason for having a special numbering system for South Asia?
- Why hasn't modern South Asia reformed this redundancy, just using "millions" everywhere? Most other aspects of numbers seem to be completely coherent. There is no special numbering system for Spanish-speaking countries. Nor, there is a special numbering system for China and Japan.
- A good example is the the game show "Who Wants to Be a Millionaire" became "Kaun Banega Crorepati" in India.
So, I need to ask this question somewhere on SE? So where can I ask a question about the history of numbers?