Preacher's Cave: Taino Maternal Thread

Archaeological data indicates that the islands of the northern Caribbean were colonized by people whose material culture shows affinities with Arawakan-speaking groups from northern South America. In the Bahamas, the Lucayan variant of Taíno culture emerges in the archaeological record around the first millennium CE, marked by pottery styles, shell tool assemblages, and habitation sites on islands like Eleuthera.

Preacher's Cave on Eleuthera is a locus of both mythic and scientific resonance: historically recorded as a shelter used by early mariners and later visitors, the cave context here produced a human bone sample dated to 892–1022 CE. That date places this individual within the early Lucayan phase of Bahamian settlement. Limited evidence suggests these settlers participated in island‑hopping maritime networks that linked the Greater Antilles, the northern Lesser Antilles, and the coast of northern South America.

Because the genetic dataset for the Bahamas is still very small (sample count: 1), any narrative about population origins must remain cautious. Archaeological patterns provide the broader framework, while this singular genetic observation offers a narrow, direct glimpse into maternal ancestry during a formative century of Bahamian history.

The genetic evidence from Preacher's Cave is limited but informative. A single mitochondrial genome from an individual dated 892–1022 CE carries haplogroup B2, one of the founding Native American maternal lineages. Haplogroup B2 is widespread among Indigenous peoples across the Americas and has been observed in some Caribbean ancient individuals; its presence in this Eleuthera sample signals maternal continuity with broader pan‑American ancestries that accompanied Arawakan expansions.

No Y‑chromosome data are reported for this sample, so paternal lineages in the Bahamian past remain uncharacterized here. Likewise, autosomal data are limited or absent, preventing fine‑scale inference about admixture, effective population size, or precise geographic source populations. Given the sample count of one (well below 10), any population-level statements are tentative: the B2 finding demonstrates that Native American maternal lineages were present in the Bahamas by the late first millennium CE, but it cannot by itself resolve questions about the number of migrations, the population structure of early Lucayan communities, or the degree of genetic continuity into later pre‑contact centuries.

Future ancient DNA sampling across multiple Bahamian islands and from both male and female individuals would be necessary to test models linking the Bahamas to particular regions of northern South America or to measure genetic diversity within Lucayan groups.