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Did the Incas Reach Polynesia? Exploring Ancient Theories

Is no secret that the Inca Empire was the greatest civilization in the Americas,  famous for its incredible empire and extending it to the vast Andes. For years, it has fascinated and piqued historians’ and scholars’ curiosity alike. 

However, did the Incas or other pre-Columbian South American peoples reach further? For example, Did they reach the distant Polynesian islands? This idea is not only bold but also opens up new ways to think about early human exploration. Actually, many theories suggest a link between South America and Polynesia. 

Evidence in plants, culture, and genetics supports this. Also, these theories may confirm that Inca Tupac Yupanqui, the son of the powerful Inca Pachatuec reached this far area staying there for around three years. Another example is Thor Heyerdahl’s Kon-Tiki expedition in 1947, which aimed to prove that such a journey was possible. 

Join us as we check the evidence to solve this mystery. Then, we’ll assess the effects on our understanding of ancient civilizations. Let’s dive into this adventure together!

Polynesia: The Oceanic Puzzle

Polynesia is a beautiful region filled with islands in the central and southern Pacific Ocean. It stretches from Hawaii in the north to New Zealand in the southwest and Easter Island (Rapa Nui) in the east. The Polynesians are famous for their navigation skills, thanks to that they settled on thousands of islands across vast oceans.

Traditionally, many scholars think that Polynesians moved eastward from Southeast Asia. However, exciting evidence hints at a possible link with South America, perhaps through the Incas or their ancestors. This connection could open new doors for understanding the rich history of Polynesia!

Theories Connecting the Incas and Polynesia

Sweet Potatoes: The Botanical Clue

Researchers found that sweet potatoes (pomoea batatas), a crop native to the Andes, were widely cultivated across Polynesia. The plant’s presence in Polynesia before European contact strongly suggests prehistoric trans-Pacific contact. On top of that, DNA studies confirmed their origins in South America.  Approximately, this tuber was present in Polynesia by at least 1000 CE, centuries before European explorers.

That’s why we can ask: Did Polynesians reach South America for sweet potatoes? Or, did South America’s indigenous peoples introduce them to Polynesia? Both scenarios are plausible. However, most believe Polynesians were the travelers due to their advanced seafaring skills.

Balsa Rafts and Ocean Currents

The Incas and the people before them in the Andes used balsa wood rafts with sails to travel along coasts and rivers. These rafts were simple but strong enough to carry heavy loads and could even handle open ocean travel. Thanks to that, the renowned Norwegian adventurer Thor Heyerdahl had an interesting idea. 

Some critics say that drifting on currents proves no intent to contact. However, Heyerdahl’s work sparked much discussion about ancient travel.

Easter Island’s Mysteries

Easter Island, or Rapa Nui, is closer to South America than many other islands in the region. The island is famous for its impressive stone statues called moai, which have captured the attention of researchers for many years. That’s where some people notice that the moai share similarities with the Inca stonework. 

While we can’t confirm a direct link, it’s interesting to explore these connections. The legends of Easter Island tell stories of “long-eared people” arriving by sea. Some believe this could refer to pre-inca or inca people. It’s important to remember that these tales can be understood in many ways.

Genetic Connections

 Recent genetic studies have uncovered exciting evidence of prehistoric contact. A 2020 study found that Polynesians and South American Indigenous peoples share some DNA markers, especially among the people of Easter Island. 

This mixing likely began around 1200 CE, hinting at a connection between the two groups. As we said before, we don’t know if South Americans traveled to Polynesia or vice versa, but evidence suggests there was some interaction.

Thor Heyerdahl and the Kon-Tiki Expedition

Thor Heyerdahl was a curious Norwegian ethnographer and adventurer. He had an interesting idea that ancient South Americans might have helped populate Polynesia. However, at that time, people believed that Polynesians came from Asia.

Contrasting this popular idea, he suggested that Incas might have floated west on rafts, guided by the Humboldt and South Equatorial currents, to reach Polynesia. In his famous experiment, “Kon-Tiki”, he demonstrated that a balsa raft could complete this journey. 

Thor Heyerdahl tried to prove that the Incas arrived at Polynesia.

Building the Kon-Tiki Raft

To explore his theory, Heyerdahl wanted to show that South Americans could reach Polynesia using only the materials and knowledge available in ancient times. He built the Kon-Tiki raft using:

  • Balsa wood logs tied together with natural fibers.
  • A simple sail made from cotton.
  • No modern navigational tools, to mimic the challenges faced by ancient sailors.

The Voyage

On April 28, 1947, Heyerdahl and his five-man crew set off on the Kon-Tiki from Callao, Peru. The raft floated westward with the Humboldt Current, facing storms, sharks, and other challenges of the ocean. After 101 days, they arrived at the Tuamotu Islands in Polynesia, traveling a distance of 6,900 kilometers (4,300 miles).

The Kon Tiki, crossing the ocean in 1947.

Impact of Kon-Tiki

Heyerdahl’s journey captured the world’s attention, as it showed that South Americans could reach Polynesia using ancient technology. However, some critics raised important points:

Passive Drift: The Kon-Tiki relied on ocean currents and wind. This means it did not show how skilled navigators could have traveled deliberately.

Lack of Evidence: While the expedition showed what could happen, it didn’t provide solid proof of historical contact.

Despite these critiques, the Kon-Tiki expedition remains a significant accomplishment in experimental archaeology. It encourages us to think about the past in new ways and explore different possibilities.

Inca Tupac Yupanqui and the Polynesia

Túpac Yupanqui, the tenth ruler of the Inca Empire, left a significant legacy through his leadership and exploratory spirit. As the son of Inca Pachacutec, he co-ruled the empire from around 1456 to 1461, laying the groundwork for its expansion.

 Known for his curiosity, Túpac Yupanqui ventured beyond the empire’s borders, gaining fame for his adventurous expeditions. After conquering the Gulf of Guayaquil in Ecuador, Túpac Yupanqui learned of two mysterious islands, “Auachumbi” and “Ninachumbi”

These islands sparked his interest, so, eager to explore these lands, the theory says that he built a fleet of rafts to embark on the journey. Around 1465, he reached the islands of Mangareva and Rapa Nui. This raises the intriguing question of whether there is evidence to support his journey to Polynesia.

Studies related to the Tupac Yupanqui Expedition

Recent studies found cultural and linguistic similarities between South Americans and Polynesians. For example, Polynesian legends and Andean writings hint at pre-European interactions in Rapa Nui and Mangareva. Peruvian Historian José Antonio Del Busto Duthurburu found parallels between the Inca and Rapa Nui structures, like the Vinapú site. 

The precise stone cuts and smooth finishes are like the engineering feats of Cusco’s Sacsayhuamán fortress, reinforcing the theory of cultural exchange. Del Busto proposes that Túpac Yupanqui may have explored the Galápagos and Las Perlas Islands. Then, he may have reached Mangareva and Easter Island.

Peruvian historian Jose Antonio del Busto suggests that the Incas reached Polynesia.

 He compared other historical accounts to known facts about these islands. He finds strong correlations, such as the capture of Melanesian people and descriptions of local fauna that match Inca narratives. The Kon Tiki expedition we discussed before, and genetic studies may support the idea that the Incas reached Polynesia. 

 One clue is the sweet potato, native to South America, which may have been brought to Polynesia during Túpac Yupanqui’s journey. Cultural elements in Mangareva suggest a link to Túpac Yupanqui. These include a water body named Te-Ava-nui-o-Tupa and a dance with a “red man.” 

Other research published by Del Busto also hints that  Polynesians called Tupac Inca Yupanqui “Mahuna-te Ra’á“, which is translated as “Children of the sun”, just like the Inca people known as their main Emperor.

Cultural Parallels and Shared Narratives

The Inca-Polynesian connection is intriguing: Their cultures and myths are similar, which may hint at possible interactions. Polynesian oral traditions often tell of heroic voyages, where heroes traveled great distances, encountering new lands and peoples. 

On the other side, when Spanish writers chronicled about inca history and oral traditions, they praised and celebrated Inca leaders like Tupac Yupanqui,  for exploring beyond the empire’s limits. Could these overlapping themes reflect shared experiences or mutual inspiration?

There are some similarities between the Polynesia and the Inca Empire. Who did get first?

In Polynesia, the reverence for the sun and celestial navigation is similar to Andean cosmovision, or how Incas used to see the universe. For example, the Inca religion and government centered on Inti, the sun god, and his “child”, the Sapa Inca or the Inca Emperor.

Easter Island’s Vinapú platform has construction techniques like Inca masonry. We can remember that the Incas used perfectly cut, fitted stones, without mortar. While such parallels may be coincidental, they invite further study to explore their origins.

Exploring the Inca-Polynesia Theory: A Friendly Perspective

The idea of contact between South America and Polynesia is fascinating, but it does have some challenges:

Maritime Traditions: The Incas were not known for sailing long distances. Unlike the Polynesians, who sailed the seas in double-hulled canoes, the Incas focused on expanding their territory over land.

Archaeological Gaps: So far, we haven’t found clear evidence of Inca artifacts in Polynesia or the other way around.

Cultural Isolation: The Inca Empire, while advanced in many ways, showed little interest in exploring the ocean. Their main focus was on the Andes and nearby coastal areas.

Looking at the Evidence Again

The discussion about potential Inca-Polynesian contact is complex. Thor Heyerdahl’s Kon-Tiki journey suggested a possible route, but we still need stronger evidence to show if such travels happened in ancient times.

Modern genetic studies suggest that ancient peoples were more connected than we thought. They are exciting new insights. With advancements in archaeology, we may soon uncover more clues to this intriguing puzzle.

Could Polynesians Have Reached South America?

Many researchers believe that if contact did happen, it was likely driven by the Polynesians. These skilled navigators explored vast areas of the Pacific and could reach South America. Supporting evidence includes:

Chickens in South America: Archaeological findings say that chickens, originally from Southeast Asia, were present in South America before Europeans arrived.

Polynesian Canoes: The Polynesians had advanced seafaring technology. It makes their long voyages more believable.

In Conclusion

The idea of the Incas or Polynesians crossing the Great Ocean and Pacific islands showcases human creativity and curiosity. Driven by necessity, exploration, or trade, these ancient peoples achieved great feats of navigation and survival.

Thor Heyerdahl’s Kon-Tiki expedition, though not conclusive, sparked new interest in these questions, as it encouraged many researchers to think boldly about our history.

Did the Incas make it to the Polynesia? What do you think?

There are mysteries surrounding Tupac Inca Yupanqui too, so, How powerful was this monarch to expand his empire to the opposite part of the world? In the present day, the possibility of Inca-Polynesian contact remains an open topic, inviting us to explore and discover more.

Ultimately, this mystery highlights the adventurous spirit that connects all mankind. Our inca ancestors, whether on land or at sea, showed incredible determination to explore the unknown. That’s another reason why we, Peruvians are proud of it.


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