Draw conclusions why was the invasion of the byzantine empire by the seljuk turk 1050s significant? 2. determine relevance how did the crusades accelerate change in europe? 3. recognize cause and effect how did improvements in agriculture in the countrysid affect the lives of townspeople? 4. draw inferences what were the advantages of living in a medieval city? would you r lived in the country or a city in medieval europe? why? 5. draw conclusions why was the revival of trade so important?