It is known that Christopher Columbus wrote a letter to the Khaghan of China. This, by itself, already connects Catalonia with the discovery of the Americas, considering that Columbus was a figure linked to the Catalan court. I explain the reason in this article. At the Institut Nova Història (INH) Symposium, in 2005, I spoke about the introduction of gunpowder to the West Europe through Catalonia. This argument is evident for many reasons that I detailed, including the large number of Catalan terms in the Spanish lexicon related to the world of weapons. So much so that even the most important concepts in this field, such as "pólvora" (gunpowder in spanish castilian) and "salitre" (saltpeter in spanish castilian), come directly from Catalan language. I also explained that there is documentary evidence that King Jaume I (James I of Aragon) used gunpowder in the conquest of Valencia and that in the Museum of the "Royal Armory of Madrid," there are some very ...