During the last weeks, we have been doing the first group of activities of the project in our school.First of all, we began with the thinking routine "I see, I think, I wonder" using for that a picture of the wall of Lugo. After that, we did a brainstorming and we established the steps we must follow to create our timeline. Finally, using cooperative work, we have investigated about the wall's history, giving importance to its built, the historical conflicts of the city and its naming as UNESCO World Heritage