The Skaikru
They look up when the world looks down, and call the fallen stars their gods.
The Skaikru are a grounders tribe in the post-apocalyptic world of The 100, distinguished by their deep spiritual devotion to the sky and the 'sky gods' they believe descended from the heavens to settle the Earth. Their name, drawn from the grounders' own language, translates roughly to 'people of the sky,' and it encapsulates a culture built around reverence for the stars, the clouds, and the memory of those who fell from above.
Within the broader grounders society, the Skaikru occupy a unique niche: while other tribes organized around territory, resource, or martial tradition, the Skaikru structured their identity around theology and celestial observation. Their rituals, oral histories, and social hierarchy all orbit the belief that the sky is a living, watching presence, and that the people who once inhabited it hold a sacred, almost divine status in the world below.
Quick Facts
- Type
- Grounders tribe (surface-dwelling)
- Affiliation
- Grounders; Earth's post-fall population
- Cultural focus
- Sky worship and celestial theology
- Name meaning
- 'People of the sky' in the grounders' language
- Setting
- Post-apocalyptic Earth, The 100 universe
- Status
- Active tribe in the later seasons of the series
Lore & Background
In the grounders' oral tradition, the world was made in silence and then interrupted by fire falling from the sky. The Skaikru preserve the most elaborate version of that origin story: the sky was not empty but full of beings who chose to descend, seeding the land with life and then vanishing back into the firmament. Every generation of Skaikru elders repeats this narrative to children, and the tribe's ceremonial sites are oriented toward the open sky rather than any earthly landmark.
Their gatherings, rites of passage, and even their disputes are framed as conversations with the absent sky gods. This theology has practical consequences. The Skaikru tend to be more curious, and sometimes more hostile, toward any new arrival from the sky than neighboring tribes, because each descent re-activates their sacred narrative. This has placed them at the center of several of the most tense encounters between the grounders and the descendants of the 100 in the later seasons.
Their relationship with other grounders tribes is complicated by this singular focus. Tribes like the Kanawa, who organized around the Lighthouse and its political authority, or the martial clans who built their identity around the weapons and knowledge of the fallen, sometimes view the Skaikru as insular or impractical. The Skaikru, in turn, see the other tribes as having forgotten the sky, as living in a world that has lost its highest axis.
Reader's Guide
From the oral archives of the Skaikru elders, as recorded in fragmentary form by later grounders scholars:
In the time before the Counting, when the sky still held its people, the Skaikru were not a tribe but a prayer. They stood where the land met the firmament and spoke upward. Their first words, the elders say, were not names but questions. 'Where do you go? Why do you leave? What do you leave behind?' The sky did not answer. The sky simply went dark, and the people who had been above became the people who were below, and the Skaikru kept their questions like seeds in a pouch, waiting for a season to plant them.
As the grounders' memory of the fall grew longer, the Skaikru's role shifted. They became the keepers of the upward gaze in a society that increasingly looked inward, toward territory and trade and the Lighthouse. Their ceremonies, once communal to all grounders, became specifically theirs. This narrowing is recorded in the oral histories as a grief, a slow forgetting shared by the whole surface population, with the Skaikru as the last to notice the dimming.
Whether the Skaikru's theology reflects an actual historical memory of the Ark's fall, or whether it is a myth that grew around a real event, is a question the series never fully resolves. The show presents the grounders' stories as layered, partially accurate, and deeply shaped by the needs of the living. Fan speculation often treats the Skaikru as the 'true' grounders, the ones who remembered correctly, but the text itself leaves that open. What is confirmed is that their sky-worship is real to them, that it shapes their politics and their relationships with the 100, and that it endures even as the world around them changes beyond recognition.
[Note: The above is a fan-constructed in-universe framing. Specific elder names, ritual details, and the exact phrasing of the 'first words' are speculative embellishments for atmosphere and are not confirmed canon.]
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