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				 Each year, millions of tourists visit the towering pyramids and 
				temples of the sprawling metropolis of Teotihuacan, far from the 
				latest discoveries on the city's southern edge. 
				 
				"We're now finding that life on the periphery was pretty good," 
				said Boston University archeologist David Carballo, who 
				discovered brightly-colored paintings over fine stucco on three 
				buildings he began excavating there in July. 
				 
				Decorated with flowers and birds that appear to be singing, the 
				murals evoking a paradise found nearly three kilometers (2 
				miles) from Teotihuacan's core came as a complete surprise, he 
				said. 
				 
				Carballo and his team have also found other signs of wealth 
				nearby, including jade, a finely carved stone mask, and shells 
				from Mexico's Pacific and Gulf coasts. 
				 
				The unpublished mural discoveries point to the radically 
				different path charted by Teotihuacan, which thrived from about 
				100 B.C. to 550 A.D., compared to other ancient civilizations. 
				
				
				  
				
				 
				At a time when daily life in the biggest contemporary Mayan 
				cities, or ancient Rome and Egypt, was marked by a tiny elite 
				lording over impoverished or enslaved masses, most of 
				Teotihuacan's estimated 100,000 inhabitants fared far better. 
				 
				Archaeologists posit that a thriving craft-based economy 
				populated by lapidaries, potters, garment makers and especially 
				obsidian workers making razor-sharp blades made the city rich. 
				 
				Near where the murals were found in Teotihuacan's Tlajinga 
				district, Carballo and his colleagues also excavated what would 
				have been a bustling obsidian workshop that likely produced an 
				estimated 200,000 blades during its lifespan. 
				 
				In the city's La Ventilla district, another aspect of 
				Teotihuacan's egalitarian character comes into view: stone, 
				multi-family apartment compounds where over 90% of Teotihuacanos 
				lived. 
				 
				Off limits to tourists despite extremely rare glyphs painted on 
				a plaza, the narrow streets of La Ventilla's residential 
				compounds suggest a densely-packed urban existence. 
				 
				The compounds boast white lime-plaster floors, built-in drainage 
				systems, open-air courtyards and murals. 
				 
				Lying 48 km northeast of Mexico City, Teotihuacan has more than 
				2,000 such compounds, thanks to a century-long building boom 
				that ended around 350 A.D. 
				 
				According to Ruben Cabrera, a veteran archeologist who pioneered 
				excavation of La Ventilla, Teotihuacan's mass housing is 
				unprecedented in antiquity, pointing to lower inequality. 
				 
				"It wasn't as pronounced as, say, Rome or other places where 
				there was a dominant group and a dominated group," he said. 
				 
				No evidence of slavery has been found there in more than a 
				century of excavations, he noted. 
				 
				CITY OF MIGRANTS 
				 
				Arizona State University archeologist Michael Smith, who leads a 
				research lab at Teotihuacan, previously calculated a measure of 
				wealth for the city based on its house sizes. 
			
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			On a scale where 1.0 means one household owns everything and zero 
			indicates total equality, Teotihuacan's so-called Gini score came in 
			at 0.12, which Smith described as a stunningly low level of 
			inequality for a pre-industrial society. 
			 
			"My first reaction was: 'This is a mistake,'" he said. 
			 
			Smith, the author of the book "Ten Thousand Years of Inequality," 
			plans to recalculate the score using a larger data set. While 
			expecting it to rise somewhat, he says it will probably still be far 
			lower than scores for Roman Pompeii or Egyptian Kahun. 
			 
			Smith also draws comparisons to digs at Aztec sites founded more 
			than a millennium after Teotihuacan's collapse. 
			 
			The average Teotihuacan household had around 200 square meters 
			(2,153 square feet) of living space, roughly the size of a tennis 
			court, while typical Aztec dwellings measured about 25 square 
			meters. 
			 
			Burial data compiled by Carballo shows that Teotihuacan's commoners 
			grew to a height similar to elites, with males buried in apartment 
			compounds less than 1 centimeter (0.4 inch) shorter than those 
			interred near the city's central Moon Pyramid. 
			 
			By contrast, commoners were over 6 cm shorter than royals in 
			Mycenae, Greece, and 9 cm shorter in dynastic Egypt, the data 
			showed. 
			 
			Linda Manzanilla, an archeologist at Mexico's National Autonomous 
			University, says the multi-ethnic migrant communities that settled 
			Teotihuacan after two major volcanic eruptions likely needed more 
			communal governance and access to resources. 
			 
			She first excavated an apartment compound in the mid-1980s on its 
			northeastern fringe where stucco workers lived and had access to 
			luxury goods including mica and fine ceramics. 
			
			  
			Refugees fleeing areas buried under ash were likely absorbed through 
			work programs in a city that placed a higher value on social groups 
			than individuals, resulting in social classes less sharply divided 
			by access to resources, Manzanilla argues. 
			 
			About a third of Tlajinga's residents may have been migrants, 
			earlier digs based on tooth signatures revealed, and foreigner 
			enclaves have been found across Teotihuacan with at least four 
			foreign languages spoken aside from the local tongue, likely a 
			precursor to Aztec Nahuatl or Otomi. 
			 
			Teotihuacan's history offers an intriguing counterpoint to modern 
			tensions often stoked by migration. 
			 
			"We should learn from its more than five-century run," she said. 
			 
			(Reporting by David Alire Garcia; Editing by Dave Graham and Paul 
			Simao) 
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