“Day 9️⃣0️⃣,” which brings me to an interesting crossroads in my “experiment in Roman numerals,” numbering my blog posts. My previous post, “Day 8️⃣9️⃣,” “Day LXXXIX,” which is the correct “spelling” of the Roman numeral for the number 89. The next post is this, which is simply XC, or “100 minus 10.”

There are “rules” for Roman numerals, such as “any number represented by a nine is the next number minus the last place holder.” [I may have this rule incorrect, as I am not a mathematician, nor a linguist.]