👉 The term "castellum" is used in Latin to refer to a fortified city or castle. It was a type of military fortification that was commonly constructed by Roman soldiers during the period from 210 BC to AD 376 CE. Castellum served as a defensive structure for soldiers and their families, providing a space for them to live while on duty. The term "castellum" is also used in English to refer to a castle or fortress that was built