Complex sentence: The Republic of the Gambia came into existence on 24 April 1970.the commonwealth phase, the British monarch remained head of state of the Gambia, and was represented in the Gambia by a governor-general.
Split into simpler sentences: The Republic of the Gambia came into existence on the 24 April 1970. During the commonwealth phase, the British monarch remained head of state of the Gambia, and was represented in the Gambia by a governor-general.