Complex sentence: Founded in 1966, Stanley and Blanche Bason gave their farm to the city council for the purpose of creating a botanical reserve, and road work and the damming of Mowhanau stream took place in 1971.
Split into simpler sentences: Founded in 1966, Stanley and Blanche Bason gave their farm to the city council for the purpose of creating a botanical reserve,. The main road work and the damming of Mowhanau stream took place in 1971.