The Duomo was built during Pisa's Golden Age, begun in 1063, to honor Pisa's victory over the Saracens in Sicily.
To honor Pisa's victory over the Saracens, nothing was built.
mnli hypothesis: To honor Pisa's victory over the Saracens, nothing was built. premise: The Duomo was built during Pisa's Golden Age, begun in 1063, to honor Pisa's victory over the Saracens in Sicily.