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This question is a follow-up to: Why didn't the number zero (0) have a Roman numeral of its own?

The number zero did not have an official Roman numeral symbol in the first place, and it still lacks it today.

Although Romans used the word nulla (nothing) to convey the concept of zero, the Roman numerals lack a zero digit in their system.

If they were aware in the concept of zero, or at least some concept of "nothingness", then they would have been likely to have a zero digit. However, they didn't.

The reason is because the Roman numeral system is a non-positional system. Non-positional systems can work normally even without a zero digit. Does this mean zero will never get an official Roman numeral symbol?

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    $\begingroup$ Maybe you have to know that Roman empire disappeared around 500 AD... $\endgroup$ – Mauro ALLEGRANZA Jul 9 at 12:22
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    $\begingroup$ Numbers are part of culture and society and both are human historical facts: when a certain society and culture "passed away", there is no reason to "invest" in it. $\endgroup$ – Mauro ALLEGRANZA Jul 9 at 12:23
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    $\begingroup$ Is like asking why nobody one produce new aluminium chariots, that would be much lighter than ancient wooden Roman chariots... $\endgroup$ – Mauro ALLEGRANZA Jul 9 at 12:26
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    $\begingroup$ Having said that, the "reason" is that in a non-positional system zero is not necessary. Without zero, we cannot "see" the difference between 11 and 101, but in Roman system there is no corresponding issue: XI vs CI. $\endgroup$ – Mauro ALLEGRANZA Jul 9 at 14:01
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    $\begingroup$ Basically, the same answer you have already... $\endgroup$ – Mauro ALLEGRANZA Jul 9 at 14:03