Harald I, also known as Harald Fairhair, was the first king of a unified Norway. He reigned from around 872 to 930 AD and is credited with consolidating various smaller kingdoms into one. His efforts laid the foundation for the future of the Norwegian monarchy. Harald I is often associated with the Viking Age, a period marked by Norse exploration and expansion. He is also known for his legendary long hair, which earned him the nickname "Fairhair." His legacy continues to influence Norwegian culture and history, making him a significant figure in Scandinavian heritage.