Write a good comment for the writer about this paragraph: Initially of the construction of Gothic cathedrals, they were considered a new, modern architectural style, something that was destroying Classical traditions. The first Gothic cathedral was the basilica of Saint-Denis at north of Paris, France during century XII d.C. The principal materials used were stone, iron and wood. The structural characteristics are tall edification supported with pointed arches, flying buttresses, ribbed vaults, elongated stained glass windows, sculptures and carving symbols. Those cathedrals are for the Christian (Roman Catholic) religion. By the beginning of the thirteenth, many towns across the north, west, east, and south, Gothic cathedrals appeared so quickly, including in the rest of Europe by the sixteenth century. According with Otto G. von Simmon's article, Gothic buildings were constructed with much meaning and symbolism with theological emphasis on mathematics and geometry where Thierry of Chartres, influenced by the philosophy of Platon that the physical world is a reflection of an eternal, and mathematician Pythagoras and his theories about the link between God and the world, believed that with geometry and arithmetic, The Trinity (Father, Son, and Holy Spirit), could be explained with the equilateral triangle representation. Also, we can see theological aspects represented by light passing across the height, stained glass windows, according to Saint-Denis, as "physical and material manifestation of the Divine Spirit." As buildings designated for the Catholic religion, they ar