Based on my interpretation of this website, I believe it's the astronomers. :)
Answer:
Language
Explanation:
Multiple Spanish phrases were used throughput the text, and religion/art/ don't play a part either. Finally folklore, i don't see it at all.
Answer: The moon phase name is shown alongside the image. The dotted line from the earth to the moon represents your line of sight when looking at the moon. So the basic explanation is that the lunar phases are created by changing angles (relative positions) of the earth, the moon and the sun, as the moon orbits the earth.
Explanation: