Complete the following sentence: In 1294, king of Portugal D. Dinis built a westward extension along the Tagus estuary radiating from the southwesternmost corner of the "cerca moura" (In 1294, king of Portugal D. Dinis built a westward extension along the Tagus estuary radiating from the southwesternmost corner of the "cerca moura") Complete the following sentence: Construction took less than a year.<unk> Construction took less than a year. Probably built to protect expanding Lisbon's shoreline commerce from piracy, it did not enclose any sector of Lisbon but barricaded the low-lying parts of what is now the Baixa.<unk> Probably built to protect expanding Lisbon's shoreline commerce from piracy, it did not enclose any sector of Lisbon but barricaded the low-lying parts of what is now the Baixa. <unk> <unk> <unk>
1755 earthquake destroyed above-ground sections of the wall, but excavations under the Bank of Portugal revealed its extensive foundations, now open to public view.