Roman numerals reading rules and converter of numbers and calendar dates into Roman numerals. Roman numerals were used for almost 2000 years, first within the Roman Empire and later on in Europe, up to around 1300 AD., when they were slowly replaced by the Arabic numbers (took from Hindu). The two converters on the website can be used to convert Arabic numbers and also calendar dates into Roman numerals. All the results (for larger converted numbers, at least) are explained. All the conversions done with the calendar dates are also briefly explained, so this comes in handy, since you can do your conversions but also learn by examples. There is a well written section on Roman numerals reading rules, for anyone who would like to learn on how to write numbers by using the Latin symbols. Lists of Roman numerals up to 100, 1000 are available on site. All the conversions performed by visitors are available to anyone who would like to browse through the results. Website fully translated into German, English, Spanish, French, Italian and Romanian languages. Some other languages to follow.