Complex sentence: She arrived in Placentia Bay, Newfoundland, on Saturday morning on the 9th of August and following much ceremony culminating in the signing of the Atlantic Charter, the ship arrived at Scapa Flow on 18 August.
Split into simpler sentences: She arrived in Placentia Bay, Newfoundland, on Saturday morning, 9 August. Following much ceremony, culminating in the signing of the Atlantic Charter, the ship arrived at Scapa Flow on 18 August.