This is right. The author is quite loose with influences, though I wont discredit the story of the article for not having a full description of history. The fi

This is right. The author is quite loose with influences, though I wont discredit the story of the article for not having a full description of history. The first Latin translation of Euclid's Elements noted in the article was not translated from the original Greek but via Arabic - by an English monk, who also brought Arabic numerals and translations of other texts on geometry from Arabic. It was Islam that kept the science of Geometry after the ancient Greeks and developed it further. The Norman conquest of southern Italy including Islamic Sicily was critical to this knowledge transfer. This happened not long before the first Gothic cathedrals appeared. Al-Andalus was also an influence. Worth noting too that while the Gothic Cathedrals were clearly developed with a geometric influence, none of them have a simple and exoteric geometric structure. Not even the Milan Cathedral mentioned in the article where we actually have some surving discussion of its geometric design has an exact and clear structure to it.