Complex sentence: The respective presidents, Ólafur Ragnar Grímsson of Iceland and Felipe Calderón of Mexico met in 2008; this was the first time a President of Iceland had made a state visit to Mexico.
Split into simpler sentences: The respective presidents, Ólafur Ragnar Grímsson of Iceland and Felipe Calderón of Mexico met in 2008. This was the first time a President of Iceland had made a state visit to Mexico.