sentences:  Loyalist settlements also led Cape Breton Island to become a separate colony in 1784, only to be returned to Nova Scotia in 1820.The Loyalists exodus created new communities across Nova Scotia, including Shelburne, which was briefly one of the larger British settlements in North America, and infused the province with additional capital and skills.The Loyalist migration also caused political tensions between Loyalist leaders and the leaders of the existing New England Planters settlement.