Popul Vuh, however, isn't a who; it's a what. Wikipedia gives the translation as something like a council book or codified oral histories; this contains the creation cycle and the stories of two pairs of heroes. The original document, written in the mid-16th century in Quiche (see note at the bottom of the post) appears to have been lost but it is believed that the San Bartolo murals correspond to much of the lost document. Definitely worth taking a look if you're curious.
Wikipedia breaks it down thus, though points out that the break-down varies with the translation:
- Gods create world.
- Gods create first humans from wood; these are emotionless and imperfect.
- Gods destroy first humans in a flood; humans are turned into monkeys.
- Two diviners named Hunahpu and Xbalanque destroy the destroyers.
- Diviners produce brothers.
- Diviners also produce "Monkey Twins" HunBatz and HunChouen.
- Lords of Xibalba kill the Monkey Twins.
- Diviners produce Hero Twins named HunHunahpu and HunXbalanque
- Hero Twins defeat Xibalba houses of Gloom, Knives, Cold, Jaguars, Fire, and Bats
- First four "real" people are made: Jaguar Quiché, Jaguar Night, Naught, and Wind Jaguar
- Tribes descend from these four, speaking the same language, and travel to TulanZuiva
- Language gets fouled up and the tribes disperse.
- Tohil is recognized as a god and demands live sacrifices; goes into hiding later.
- Tohil affects Earth Lords through priests and his dominion destroys the Quiche.
- Priests attempt abductions to get sacrifices, which the tribes resist.
- Quiche found Gumarca and the Feathered Serpent Lord Gucumatz puts them in power.
- Elaborate rituals instituted by Gucumatz.
- Tribal geneaology.