January 25!!!!

What is the event that we are going to celebrate every December 25??? What is the significant for us bigueneos?? Is it important for us to celebrate??
Starting January 16 yhere were many activities related to the feast of Vigan that we were celebrating in the month of january. Like for example the longganisa festival, it will never vanish because it is now part of the culture and how vigan was known because of this products we have, also including St. Paul in the parade last January 22, he also part of the celebration because he is our patron here in Vigan city. But the most important thing that Vigan was celebrating is for becoming its city.The 1st province that UNESCO confirm yo be a city here in Ilocos Sur. The reason why is because it is the center of production that's why they wanted to become it wider.