Probably because most countries in Europe and North Africa were still under Roman rule.
In the 4th century BCE.
Roman numerals came into use in the 4th Century BC. They originated from etruscan numerals but the symbols were changed. They were used for mathematics.
It was first invented in the 4th century BC. By 525 AD, Dionysius Exiguus was using Roman numerals
IV - VIII - August 4th in Roman numerals
The Roman system of numbering came into common use in the 4th century BC. Before that, they used the Greek system of numbers.
In the 4th century BCE.
Roman numerals came into use in the 4th Century BC. They originated from etruscan numerals but the symbols were changed. They were used for mathematics.
It was first invented in the 4th century BC. By 525 AD, Dionysius Exiguus was using Roman numerals
IV - VIII - August 4th in Roman numerals
The Roman system of numbering came into common use in the 4th century BC. Before that, they used the Greek system of numbers.
I.IV
February 4th, 1964 in Roman numerals is written as IV.II.MCMLXIV.
It was first invented in the 4th century BC. By 525 AD, Dionysius Exiguus was using Roman numerals to calculate the birth of Christ and formulate the AD era (now known as the Common Era, or CE). He also used N (nulla, latin for none) for the value zero, as did Bebe in 731 when the AD era finally became dominant. Roman numerals were in common use until the 14th century, when they were largely replaced by the Hindu-Arabic numerals that had been introduced in the 10th century. In ancient Rome, in the Middle Ages (5th Century AD to 16th Century AD) Thought to have been adapted from the Etruscan numerals.
By research i believe the Etruscans created Roman numerals these two numbers systems have similarities except they have different symbolic signs towards each other. The Etruscans did and they once ruled the Romans.
October 4th 1985 can also be written as 10-04-1985 and this can be represented by the Roman numerals X.IV.MCMLCCCV
IV-VII-MCMXCV
It is: IV-V-MMXII