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The Nazca Lines

The Nazca Lines of southern Peru: how the desert geoglyphs were made, the researchers who studied and protected them, the 2024 AI-assisted discovery of 303 new figures, and the threats they face.

Chapter 1

A Canvas in the Desert

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On the arid Pampa de Nazca, 400 kilometres south of Lima, an ancient civilization left its mark on a colossal scale. Between 200 BCE and 500 CE, the Nazca people etched massive figures into the desert floor by carefully removing dark, iron-oxide-coated pebbles to reveal lighter sand beneath. This created high-contrast lines forming giant shapes like a hummingbird, a spider, and a monkey with a spiral tail, some spanning hundreds of metres. The region’s unique climate, with very little wind or rain, has preserved their work for millennia. For centuries, however, their full scale and complexity remained largely unrecognized until they were first viewed from aircraft in the 1920s and 1930s.

Frequently Asked Questions

How were the Nazca Lines created?

The Nazca people created the geoglyphs between 200 BCE and 500 CE. They removed the dark, reddish-brown pebbles from the desert surface to expose the lighter-colored sand underneath. This created high-contrast lines that have survived for millennia due to the region's dry, windless climate.

What was the 'Lady of the Lines' known for?

Maria Reiche, a German mathematician, was called the 'Lady of the Lines' for her devotion to preserving the geoglyphs. For over 50 years, she lived in the desert, famously using a broom to sweep the lines clean and protect them from damage, eventually securing their UNESCO World Heritage status in 1994.

How did AI change our understanding of the Nazca Lines?

In 2024, an AI model trained to recognize patterns in aerial imagery identified 303 new geoglyphs in just six months. These newly found figures are smaller than the classic animal designs and often depict humanoids, suggesting they served a different purpose, possibly as markers along ancient trails.

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