Rare Tibet
Cayamay Lactus – Apocryphal Source of the five Great River Systems of Southeast Asia
For nearly four hundred years many maps of Asia, and particularly India and Southeast Asia, depicted an enormous lake far to the northeast of the Bay of Bengal. This lake, alternately called Chiamay, Chiam-may, Chian-nay, or Cayamay, is postulated to be the source of four to five of the great Southeast Asian river systems, the Irrawaddy, the Dharla, the Chao Phraya, the Bramaputra, and the Mekong. Today we know that the Lago de Chiamay is entirely non-existent, but where did this persistent myth come from?
1685 Bormeester Map of the World showing Chiamay
The earliest reference to the Lago de Chiamay that we have been able to come across is the c. 1550 geographical study produced by Jao de Barros. Barros, who is not known to have traveled to the orient himself, compiled his geography from reports from Portugese explorers in the region, who themselves no doubt extracted many of their ideas about the remote interior of Asia from indigenous authorities. His most likely source for our purposes is most likely Fernao Mendez Pinto. Today the Barros geography is unfortunately lost, but some of its commentary survives via G. B. Ramusio and his 1554 edition of “Navigationi et viaggi”. While some have argued that Ramusio could not have possibly have had access to Barros’ commentary, as it had not been published at the time, Ramusio himself provides clear reference that he did in fact have an unpublished Barros manuscript. Ramusio includes several maps in his “Navigationi et viaggi” that were drawn around 1550 and depict the Lago.
Fernao Mendez Pinto, Barros most likely source and the lake’s supposed “discoverer”, is the only European who claims to have visited the lake itself. Pinto apparently discovered the lake in 1744. Generally speaking, while Barros was well respected in his day, Pinto is considered an unreliable geographer at best and at worse has been dubbed the “prince of fiction”. Why this is the case when he was without a doubt actually in Siam, may be explainable when his own sources are evaluated. Pinto may have heard about the lake in the Royal Court of Siam, one of the kings of which is said to have invaded Chiamay and captured many cities around it.
1540 Seutter Map of India, Tibet and Southeast Asia
That Pinto derived much of his geography from local sources is highly likely. What he and his readers back in Europe may not have counted on is the presence of a mythical and semi-mythical Hindu-Buddhist geography overlaying the actual geography. Hindu and related Buddhist mythology consider Lake Manasarovar and Lake Rakshastal, in modern day Tibet, to be the spiritual source of four religiously and geographically important subcontinent rivers, the Brahmaputra, the Karnali, the Indus and the Sutlej. As the Hindu-Buddhist culture expanded into southeast Asia, these four rivers and their source lake were reassociated with local rivers such as the Irrawaddy, the Dharla, the Mekong, and the Chao Phraya.
From a European perspective, associating these rivers systems with one another and with a single source is an almost natural assumption. All five rivers bear a great deal of similarity. That is, all seem to originate from roughly the same area, all flow along roughly parallel courses, and all have enormous fluvial volume. Associating a great lake with said source is equally natural. Given the size and orientation of these river systems, one naturally speculates that the source lake itself must be enormous. Such speculation was not uncommon for map makers working in the 18th century and earlier. Cartographers, who rarely traveled the world themselves, had the difficult job of piecing together and interpreting various vague and often contradictory traveler’s accounts as well as reconciling such new information with accepted mappings.
Whatever the original source for the Lago de Chiamay may have been, it begins appearing on maps as early as the Gastaldi map of 1550 (though some speculate that this map was actually drawn a few years earlier). The Lago was embraced by Ortelius in his c. 1570 mappings of Asia and was eventually associated with various hopeful fantasies of a river passage through central Asia to the North Sea. Almost all subsequent mappings until the late 18th century included the Lago de Chiamay in various forms. Later, as explorers began to penetrate the region with greater regularity, Chiamatwas at various point associated with any lake discovered in the area, including Koko Nor (Qinghai Lake) in China and the actual Lake Manasarovar in Tibet. By the late 18th century the lake had moved far west of its original location and been reduced to a fraction of its original size. By the 19th century, it disappeared entirely.
The source of the name itself, “Chiamay” may be derived from Pinto’s original discovery of the lake in the records at the Royal court in Siam. Pinto was told of a royal raid to conquer and claim Chiang Mai, once the Capital of the Lanna Kingdom.
1848 Homann Heirs Map of India & Southeast Asia
The city of Chaing Mai, now fully part of Thailand was founded in 1296 and was frequently invaded and conquered by both the Siamese and Burmese empires before being formally incorporated into the Siamese empire in the late 18th century. Though there is no lake near Chiang Mai, Pinto, who is not known for reliability, may have misinterpreted what he was told. The Lago de Chiamay is most likely the result of Pinto’s misunderstanding of stories from the royal court of Siam, misassociations regarding the Buddhist-Hindu mythology associated with Lake Manasarovar, and natural assumptions based upon the observable similarities of the great southeast Asian river systems.
Sven Hedin discusses this lake and its origins in great detail in his fascinating and well researched 1919 article, “Early European Knowledge of Tibet”.
About the Author
Kevin Brown is a prominent rare and antique map dealer with the New York firm Geographicus Antique Maps.
http://www.geographicus.com
I was very inspired by the smiley face in the sky last week, and I have some questions.?
1)In the previous conjunctions, were the planets as close together and/or as close to earth as this weeks’?
2)Is there a record of a Jupiter Venus conjunction with the moon that was as close, as visible and with a crescent moon like this one?
3)I read that the previous conjunction was not visible since it occurred during daytime. Is it rare for it to have an extended visibility of several days, the
way we are having it now?
4)I also read that India and the Philippines saw a smile, while parts of Europe did not see any facial expression at all. Did Tibet which is more north of India and the Philippines get a smile too?
5)How much in advance was it able to be determined the exact appearance of closeness of the conjunction and that it will be with a crescent moon?
I have developed a great interest in astronomy now. Would anyone be able to refer me to some websites where I can gain some knowledge?
Your answers are geatly appreciated.
Hi. Maybe I can help you with a few of your questions.
1) Planetary conjunctions don’t happen everyday, but they aren’t extremely rare either. Tighter conjunctions have happened in the past, and will happen again.
It is important to remember that although the planets appear close together in the sky, they aren’t necessarily close together in space (or close to the Earth, for that matter). On the evening of December 1, Venus was about as far from the Earth as Earth is from the Sun (about 1 Astronomical Unit, or AU). Jupiter was nearly on the other side of the Sun, about 5.8 AU distant. Neither planet was as close to Earth as they could have been. At its closest approach, Venus is about 0.3 AU away (although we can’t see it because it appears very close to the Sun in the sky when it’s that close) and Jupiter was about 4.2 AU away earlier this year. In fact, in order for Jupiter and Venus to be in conjunction, Jupiter HAS to be relatively far away from Earth.
2) In February of this year, there was a pretty good conjunction between Venus, Jupiter, and the Moon. Unlike this most recent conjunction, it happened in the early morning hours just before sunrise. The next Venus-Jupiter conjunction will be in May of 2011 (in the morning sky) and again in March of 2012 (inthe evening sky).
3) As I said before, the last conjunction between Venus and Jupiter WAS visible if you were willing to get up before sunrise to see it. No, it is not rare for two planets to appear close to each other for weeks at a time, since the planets move slowly against the background of stars. Now any conjunction that involves the Moon will necessarily only last for a day or so, since the Moon moves much more quickly across the starry background than the planets do.
4) The “smile” effect was just an optical illusion caused by the crescent Moon (the smile) being to the right (west) of the “eyes” (Venus and Jupiter) for observers in those locations. Observers in Europe actually got to watch the Moon pass in front of Venus, and observers in America saw a “frown” face because the Moon was to the east of Venus and Jupiter when we got to see it.
If you want to know who saw what, may I recommend the excellent (and free) program called “Stellarium”:
http://www.stellarium.org
5) Astronomy has been a pretty sophisticated science for a long time now. This conjunction could have been (and probably was) predicted decades or perhaps even centuries ago. The only reason astronomers didn’t bother making a big deal about it is because it isn’t all that rare (even if it is beautiful). Conjunctions like this one happen fairly frequently, and astronomers know it.
I hope that helps. Good luck!
The Lost World of Tibet (rare footage of Tibet in 1930s) 1/5 – www.Youtube.com/TibetArchive
