Complex sentence: Espita name remained so for three centuries, until the September 15,1876, when the town council changed the official name to "Espita de Peniche Gutiérrez"; same as, to date, completely not used in any official document.
Split into simpler sentences: Espita name remained so for three centuries, until the September 15,1876, when The Town Council changed the official name to "Espita de Peniche Gutiérrez". Same as, to date, completely not used in any official document.