Ancient Greece developed around 6000 BC when people settled in villages and began farming. Around 2000 BC, invaders from West Asia introduced bronze, the potter's wheel, and the Greek language. Common people in ancient Greece lived with their families in simple stone or wood houses with a courtyard, while wealthy homes had multiple rooms. Marriage was usually arranged, and women married young and focused on domestic duties. Children received some education, with boys learning academics and girls learning domestic skills. Ancient Greek culture included art, theatre, music and worship of the Olympian gods led by Zeus.