Prehistoric settlement of Fort Walton Beach is attributed to the mound building "Fort Walton Culture" that flourished from approximately 1100~1550 AD. It is believed that this culture evolved out of the Weeden Island culture. Fort Walton also appeared to come about due to contact with the major Mississippian centers to the north and west. It was the most complex in the north-west Florida region. The Fort Walton peoples put into practice mound building and intensive agriculture, made pottery in a variety of vessel shapes, and had hierarchical settlement patterns that reflected other Mississippian societies.