Complex sentence: Prior to 1930, the recommended route by the Automobile Association, from Whangarei to Kaitaia was via Mangakahia and was named Highway 1 Approx 90 years later a formal designation has been re-instated.
Split into simpler sentences: Prior to 1930, the recommended route by the Automobile Association, from Whangarei to Kaitaia was via Mangakahia and was named Highway 1. Approximately 90 years later a formal designation has been re-instated.