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Researchers also noted that salt sites outside of the Peten region demonstrate how this extensive salt production was beyond the control of Mayan state leaders.

The Punta Ycacos Lagoon artifacts serve as proof on how salt was made and transported in ancient Maya.

They have also provided an insight on the economy of pre-Industrial societies.

The human race has existed for at least one hundred thousand years, and perhaps even longer.

Carbon-14 has a half-life of 5,000 years, so it slowly decays and its frequency declines as the organic material is buried.

The seemingly standardized sizes of pottery hint that there was mass production of salt carried out by distinct work groups.

To understand where a given artifact fits into the scheme of history requires dating it with a reliable degree of precision. The earliest method of dating artifacts is to look at which strata of rock they are found within.

To accurately determine this, each layer of soil must be removed, a process known as extraction, during the archaeological dig.

The ancient paddle proves that Mayan folks used canoes to transport bulks of goods such as salt to the inland Maya cities.

The wood structures most probably served as facilities for storage or production workshops, and the pottery debris at the site indicates that seawater was reduced to salt through the boiling process.

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Using a land-based archaeological technique of pedestrian survey, the team walked and snorkeled on flotation devices across the lagoon.