The Portas do Cerco is a zone on the northern tip of the Macau Peninsula known by its fringe entryway isolating Macau from the Chinese terrain. The door was inherent 1849 to supplant a disintegrating divider that was raised in 1573 to check the outskirt of the Portuguese settlement. It was the site of the Baishaling Incident, a conflict between Qing tradition and Kingdom of Portugal in 1849 over the passing of Macau's representative Ferreira do Amaral. Driven by Colonel Mesquita, Portugal won the little fight which prompted the augmentation of Macau's outskirt northwards. At the point of confinement of said development, the Portas do Cerco was worked with the engraving (Portuguese for "Honor your country, for your homeland looks over you") on the façade on its inward curve in 1849. For the following 155 years, the door served as the outskirt amongst Macau and China.