A woman buried in Tonga in the Iron Age era

Tonga, located in the central South Pacific, is an archipelago that has a rich cultural history stretching back several millennia. Around 2,700 years ago, Tonga was undergoing significant developments as part of the broader prehistoric Polynesian cultural horizon known as the Lapita culture, which provides key insights into early Polynesian societies.
The Lapita Culture
Origins and Expansion: The Lapita culture, which originated from the Bismarck Archipelago in what is now Papua New Guinea, began spreading across the Pacific around 3,500 years ago. By approximately 2,700 years ago, this culture had reached and begun to establish settlements in Tonga. The Lapita people are renowned for their remarkable ocean-going capabilities and navigational skills, which allowed them to travel vast distances across the Pacific Ocean, ultimately leading to the settlement of diverse island groups including Tonga, Samoa, and Fiji.
Pottery and Artifacts: A distinctive feature of the Lapita culture was its pottery, characterized by intricate geometric designs created using a method called dentate stamping. These ceramics serve as crucial archaeological markers for identifying Lapita settlements. In Tonga, archaeologists have unearthed fragments of decorated pottery that provide valuable insights into the artistic and functional aspects of this early culture.
Sociopolitical Structure
Village Life: The Tongan Lapita communities likely consisted of small to medium-sized villages, typically situated along coastlines or near fertile valleys and river mouths. These communities were organized along kinship lines, and extended families lived together in single compounds.
Social Organization: The social structure was likely stratified, with emergent chiefly systems beginning to form, laying the groundwork for the highly organized Tongan chiefdoms observed at contact with Europeans. Chiefs, or 'eiki,' held positions of power, possibly overseeing resource management, ceremonial duties, and maintaining social harmony.
Economy and Subsistence
Agriculture: Agriculture was a central part of life, with the cultivation of root crops such as taro and yams. These crops, along with breadfruit and bananas, provided the staples of the diet.
Fishing and Marine Resources: The sea was a crucial resource, and Lapita communities in Tonga were adept at fishing and exploiting marine resources. Evidence suggests they utilized sophisticated fishing techniques and tools and likely engaged in deep-sea fishing for species such as tuna.
Technological Innovations
Tool Making: Stone tools were an essential component of Lapita technology. Obsidian and other types of stone were used to make sharp cutting implements, which were, in turn, employed in a range of daily activities, from food preparation to canoe building.
Canoe Building and Navigation: The design and construction of canoes were vital aspects of Tongan society 2,700 years ago. The Lapita were expert navigators, using canoes to travel and trade between islands, spreading their cultural practices and genetic lineage across the Pacific Ocean.
Religion and Beliefs
While direct evidence of the spiritual beliefs of Lapita communities is limited, it is likely that animistic beliefs played a role in their lives. This would involve the worship of natural spirits and ancestors, practices commonly found in later Polynesian cultures.
Environmental Interaction
Adaptation and Sustainability: The early Tongans showed an aptitude for adapting to their environment, employing sustainable agricultural methods to maximize land fertility. Their settlements were strategically located to exploit both land and marine resources, ensuring a balanced diet and stable food supply.
Environmental Impact: Archaeological evidence suggests that early human activity may have led to some environmental changes, including deforestation and the extinction of certain bird species. Nonetheless, these communities displayed resilience and adaptability in their interaction with the environment.
Conclusion
Tonga, 2,700 years ago, was part of a dynamic and expanding Lapita culture that showcased advanced maritime skills, distinctive art in pottery, and complex social systems. The descendants of these early settlers laid the foundation for the highly sophisticated and organized Tongan society that would follow, ultimately contributing to the broader Polynesian narrative across the Pacific.
Ancient genetic admixture analysis compares the DNA profile of this individual (Sk10) with present-day reference populations. These results show what percentage of the individual's genetic makeup resembles ancient populations from different geographic regions.
Modern genetic admixture analysis compares the DNA profile of this individual (Sk10) with present-day reference populations. These results show what percentage of the individual's genetic makeup resembles modern populations from different geographic regions.
These results complement the ancient ancestry components shown in the previous section, offering a different perspective on the individual's genetic profile by comparing it with modern reference populations rather than prehistoric ancestral groups.
The G25 coordinates for the sample Sk10 are as follows. You can analyze its admixture using G25 Studio.
Sk10,0.01405912,-0.4098915,-0.0528765,-0.0485678,0.11671314,0.06238684,-0.0013946,-0.00563658,-0.015448,-0.01235148,0.02566444,0.00281476,0.00111198,-0.00674016,0.00332278,0.00172068,0.00611968,-0.00350138,-0.00197974,-0.00628246,0.00617372,0.00859326,0.00954346,0.00343734,0.00967997
Genomic insights into the peopling of the Southwest Pacific
The appearance of people associated with the Lapita culture in the South Pacific around 3,000 years ago marked the beginning of the last major human dispersal to unpopulated lands. However, the relationship of these pioneers to the long-established Papuan people of the New Guinea region is unclear. Here we present genome-wide ancient DNA data from three individuals from Vanuatu (about 3,100-2,700 years before present) and one from Tonga (about 2,700-2,300 years before present), and analyse them with data from 778 present-day East Asians and Oceanians. Today, indigenous people of the South Pacific harbour a mixture of ancestry from Papuans and a population of East Asian origin that no longer exists in unmixed form, but is a match to the ancient individuals. Most analyses have interpreted the minimum of twenty-five per cent Papuan ancestry in the region today as evidence that the first humans to reach Remote Oceania, including Polynesia, were derived from population mixtures near New Guinea, before their further expansion into Remote Oceania. However, our finding that the ancient individuals had little to no Papuan ancestry implies that later human population movements spread Papuan ancestry through the South Pacific after the first peopling of the islands.