Roman is Latin. Latin is the language of Latin people who lived in Rome area of Apennine Peninsula more than 2000 years ago. Later, this nation conquered most of Europe and parts of the Middle East and established the Roman Empire. Latin became the official language of the whole Roman Empire.

With the development of history, the Roman Empire disintegrated and many independent countries were formed. These independent countries combined local dialects on the basis of Latin and formed their own languages. For example, the languages of France, Italy, Spain, Portugal, Romania and other countries have many similarities, that is, the Latin family.

Latin was originally a dialect of Latin in central Italy (meaning Lazio in Italian). Later, due to the expansion of the Roman Empire that originated here, Latin was widely spread in the empire, and Latin was designated as the official language. After Christianity spread widely in Europe, Latin became more influential. From the Middle Ages in Europe to the beginning of the 20th century, Roman Catholicism was the common language, and most academic papers were written in Latin. Although only the Vatican still uses Latin, some academic words or articles, such as the naming rules of biological taxonomy, still use Latin.