Complex sentence: During the Portuguese conquest of the Americas Cabral made landfall off the atlantic coast, over the following decade he pursued a policy of the systematic eradication of the indigenous Tupí, Tapuya and other tribes which lived along the coast.
Split into simpler sentences: During the Portuguese conquest of the Americas, Cabral made landfall off the atlantic coast. Over the following decade he pursued a policy of the systematic eradication of the indigenous Tupí, Tapuya and other tribes which lived along the coast.