Roman laws included restrictions on marriage, ownership of land, and access to professions such as priesthoods.
Language also played a part in Roman infrastructure. Romans spread the Latin language throughout southern Europe. The so-called "Romance languages" (Spanish, French, Portuguese, Romanian, Catalan, and Italian) are called that because they all developed from the Roman language: Latin. Having a similar language made communication and leadership easier for Rome in its far-flung territories. Roman leaders relied on a series of legal codes for administration. These codes helped structure laws between different parts of Roman territory, as well as between rich and poor, men and women, slave and free. Roman laws included restrictions on marriage, ownership of land, and access to professions such as priesthoods.