Roman numerals are a numeric system that is based on the Latin alphabet. It was developed around 500 BC in ancient Rome. They consist of seven different symbols, denoted by seven Latin letters: I, V, X, L, C, D, and M.
The reason why the Romans used the numeric system was because they needed some way to count their money without having to use their fingers.
Roman numerals are the numeric system that was used throughout the Roman Empire to represent numbers. It is one of the few systems that has been around for millennia and is still in use today, as can be seen on some clocks, tombstones, architectural buildings, etc.
They are a system of writing numbers that was used in ancient Rome. The symbols for the numbers I, V, X, L, C, D, and M correspond to; I = 1, V = 5, X = 10, L = 50, C = 100, D = 500, M = 1000.