The Celts lived in Britain and Ireland during the Iron Age, settling in roundhouses made of wood, clay, and thatch. They lived in family groups within settlements and hill forts for protection. Archaeologists have discovered evidence of Celtic culture through accidental findings like a body from 2000 years ago that still had food in its stomach. The Celts were farmers, traders, and warriors trained to fight with shields, swords, spears, and chariots. They had a pagan religion with many gods and druids who performed sacrifices and divination.