The document discusses Portugal's Roman past and a class trip to explore Roman ruins. It notes that Portugal was once part of the Roman Empire and conquered by Roman legions. The Romans left many influences, including Latin words, roads, temples, and ruins of cities built similarly to Rome. The class took a study trip to Conimbriga to explore its ruins, including a Roman house with features like a swimming pool, hypocaust heating system, and glazed tiles. The students were tired but happy to discover their Roman roots.