

Nah, the roman system developed from even older systems.
They’re tally marks, with a twist.
You take a stick and cut a notch, that’s one. This works up to a point, and that point is 4 or 5, when it becomes unwieldy, and our brains have trouble using the groups of notches.
So you need a new mark to denote a grouping. The v notch is basically adding a / to the already present \ or | tally mark, denoting that the new symbol represents a group of the previous ones.
Different methods have 3 base marks, with the fourth being the new one, others do it at five.
Roman numerals stop at 3 individual marks, and there’s no record of why. But avoiding 4 repeating symbols is consistent with the higher numerals as well.
Basically, once you hit |||, the next number with be the | subtracted from the next higher digit. It works with IX, as well as XL, XC, etc.
But, the idea you suggest is sometimes presented as a possible origin for the earlier systems. Thing is, other tally systems that originated separately follow the same basic concepts, without using the same V symbol, but using other cross marks. Not that it matters because nobody knows. Nobody back then passed the information along.
It does kinda make sense, but the idea that it’s the simplest way to make marks on sticks and stones does too
Man, it’s crazy what folks will get up to when they’re spring cleaning their HQ.
Kinda bold of them to admit up front that ice is the same as the klan. Never would have thought a group of republicans would just put it out there like that.