Tuesday, May 23, 2006

Much of what we think we Know in History is Murkier

And this is a very interesting look at some terrible events.

One thing I thought I knew was that smallpox was a European virus brought over with devastating impact to the native populations not acquainted with it. But:

His studies of ancient documents revealed that the Aztecs were familiar with smallpox, perhaps even before Cortés arrived. They called it zahuatl.

...

After 12 years of research, Acuña-Soto has come to agree with the Aztecs: The cocolitzli plagues of the mid-16th century probably had nothing to do with smallpox. In fact, they probably had little to do with the Spanish invasion. But they probably did have an origin that is worth knowing about in 2006.
...

To prove anything beyond a hunch, Acuna-Soto knew he would need good forensic science. He considers himself fortunate to have found the work of Francisco Hernandez.

Hernandez, personal physician to Philip II of Spain, was named Proto-Médico de su magestad de todas las Indias in 1576. He was, in effect, the surgeon general of New Spain.

"Philip sent him to Mexico to see what he could learn of native medicines," says Acuña-Soto. "Hernandez learned five Indian languages and wrote 50 volumes based on his own observations and interviews with hundreds of Indians. He performed autopsies on many of the victims of the 1576 epidemic. But the books arrived back in Spain just after Philip II's death. Philip III considered the project too expensive to publish, and the manuscript disappeared for 400 years. Around 1950 it resurfaced in the Hacienda Library in Madrid."

Six years later, Mexican physician German Somolinos d'Ardois published an account of that manuscript. Although Hernandez's descriptions of what he saw were rendered in an unsophisticated Latin, Somolinos d'Ardois was able to conclude that Hernandez considered the 1576 epidemic different from those that had come earlier.
...

With the climate data in place, Acuña-Soto could piece together a convincing explanation of those epidemic years. Cocolitzli had been caused by a hemorrhagic fever virus that had lain dormant in its animal hosts, most likely rodents. Severe drought would have contained the population of rodents, forcing them to hole up wherever they could find water. Initially, only a small percentage may have been infected, but when forced into close quarters the virus was transmitted during bloody fights. Infected mother rodents then passed the virus to their young during pregnancy. When the rains returned, the rodents bred quickly and spread the virus—through their urine and feces—as they came into contact with humans in fields and homes. Once infected, humans transmitted the virus to one another through contact with blood, sweat, and saliva.

There is a lot of reading. It is a nice picture of history being done, incorporating much knowledge from separate disciplines. It is an ugly story about how nature works, as well.

None of this denies that smallpox did do bad stuff, or that Europeans did.

1 Comments:

At 5:40 PM, Blogger Alan Adamson said...

And rhetoric can be interesting. I have enjoyed the entertaining discussions of the evidence for the chimp-hominid hybridization.

 

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