a little different to Mc Chucks huh
How to Feed a Megacity Like the Aztecs
The chinampas that nourished Tenochtitlan may hold the key to better urban gardens.
BY
REINA GATTUSONOVEMBER 18, 2019
Farmers on a
trajinera, a traditional flat-bottomed river boat. RONALDO SCHEMIDT/AFP VIA GETTY IMAGES
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DESTINATION GUIDE
Mexico City
WHEN CONQUISTADOR HERNÁN CORTÉS REACHED Tenochtitlan in 1519, he beheld a floating city. The temples and palaces of the Aztec capital
gleamed white from an island in the middle of a vast lake, all spread under a searing blue sky. With an estimated population of 200,000, roughly the size of contemporary Paris, the city overflowed with people. Around the metropolis, an archipelago of lush islands emerged from the lake’s glassy surface, overflowing with plants.
These were the floating gardens, or
chinampas, that fed the Aztec Empire. Constructed of layers of earth taken from the lake bottom, and held together by the tangled roots of diverse and rotating crops, chinampas are rich islands of soil that can produce up to seven harvests a year. The result of Aztec adaptations of earlier agricultural forms, chinampas’ efficiency has gained them UN recognition as
a marvel of agricultural ingenuity.
Today, the parched asphalt streets of Mexico City—built on top of the filled-in lake that once bore Tecnochtitlan—show little trace of these lush Edens. But if you head to the southern borough of Xochimilco, where the cusp of the city touches the countryside, the landscape still bears an ancient crisscross of canals. Some of these chinampas have been in use since Aztec times. Most have been built and deconstructed again and again, part of a living current of agricultural knowledge flowing through centuries.
An early Spanish colonial document, the Florentine Codex, details chinampa agriculture in what is now Mexico.
THE DIGITAL EDITION OF THE FLORENTINE CODEX/CC BY 3.0
“The way they are built is almost identical to the way they were built in pre-Columbian times,” says Roland Ebel, a Postgraduate Research Associate in Health and Human Development at Montana State University.
How to Feed a Megacity Like the Aztecs
how incredible also
Found: A Prehistoric Bead-Making Factory Town Off the Florida Coast
The kinds of beads they made were coveted far and wide a thousand years ago.
BY
ISAAC SCHULTZNOVEMBER 5, 2019
Excavations conducted after the lidar survey revealed the extent of the bead-making village. COURTESY TERRY BARBOUR AND KEN SASSAMAN
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Florida
IN 2010, TWO GRADUATE STUDENTS from the University of Florida landed on Raleigh Island, an uninhabited piece of Florida’s western coast, to check for environmental damage from the
Deepwater Horizon oil spill, which gushed more than three million barrels of oil into the Gulf of Mexico. They didn’t find oil, but amid the dense stands of palmettos and cedars there were dozens of large ring structures, where pre-Columbian people lived and ran a factory for making beads out of shells.
“They came back and told me and I was like, ‘Yeah, right,’” says Ken Sassaman, an archaeologist at the university and coauthor of
a recent paper on the finds in the
Proceedings of the Natural Academy of Sciences. “‘Let’s check it wasn’t from some target practice range or mining work.’ Because there’s no precedent for it.”
Along Suwannee Sound, around 60 miles from Gainesville, the land fragments into a patchwork of islands and estuaries that are now mostly recreation areas and wildlife refuges that protect everything from manatees to black bears to bald eagles. Prior surveys had shown some signs of human presence on Raleigh Island, less than a mile from the mainland, but the scale of the site and its purpose were unknown until now
.
A lidar drone collecting data at Raleigh Island. COURTESY KIM SCOTTO-KELLEY
The University of Florida team used drone-mounted lidar equipment to survey the island’s topography below the dense foliage, and conducted test excavations. They found 37 rings of varying sizes, but each large enough to enclose a living space, some up to 12 feet tall, and all made of discarded shells dating to between 900 and 1200.
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Found: A Prehistoric Bead-Making Factory Town Off the Florida Coast