The Twelve Tables, enacted in 451-450 BC, were a set of laws that formed the basis of Roman Law and influenced subsequent legal systems.

Lex Contractus, meaning 'law of contracts', established the principle of consensual agreements, allowing Roman citizens to form legally binding contracts.

Peregrinus referred to a non-Roman citizen who resided in the Roman Empire and was subject to Roman law but lacked full citizenship rights.

Adoptio was the legal process by which a person could adopt another person as their legal child, granting them the same rights and responsibilities as a biological child.

Servus referred to a person who was enslaved under Roman law, deprived of their freedom and subject to the control of their master.

Testamentum was the legal document through which a person could express their wishes regarding the distribution of their property after their death.

Manumissio was the legal process by which a slave could be freed from slavery, granting them the status of a freedperson.

Tutela was the legal institution that allowed a person to appoint a guardian (tutor) to care for their children and manage their property in case of their death or incapacity.

Libertus referred to a person who had been freed from slavery and gained the status of a freedperson, enjoying certain rights and privileges.

Matrimonium was the legal institution that recognized and regulated marriage in Roman Law, establishing the rights and responsibilities of spouses.

Capitis Deminutio was the legal process by which a person could lose their legal status or capacity, including their rights and obligations.

Hereditas referred to the legal right of a person to inherit the property of a deceased relative, becoming their heir.

Exsilium was the legal punishment that involved banishment or exile from Rome, depriving the person of their citizenship rights.

Donatio referred to the legal act of transferring ownership of property from one person to another without any consideration or exchange.

Interdictio was the legal process by which a person could be declared legally insane or incapable of managing their own affairs.