When I first began research on Tibeto-Burman and Southeast Asian languages as a postgraduate student in 1975, North East India was a huge informational vacuum. Not that there was that much information to be had on Tibeto-Burman languages in general, but for the North East we had only the tantalizing snippets of the Linguistic Survey of India and a handful of colonial-era jottings. Of course, many years earlier the publication of the <I>LSI made North East India better documented linguistically than many other corners of the earth, and made early comparative work on Tibeto-Burman possible. But time moves on, and while the fragmentary and primitive documentation provided by the LSI and the efforts of enthusiastic but untrained missionaries and authors fueled the pioneering work of Konow and others, by the time I entered the field there was little more that could be done with the superficial documentation available. And this seemed likely to be the situation for the foreseeable future, since the region was generally inaccessible to outsiders at the time, and almost nothing was being done locally. For those of us outside India the valiant efforts of intrepid Indian linguists like K. Das Gupta and I. M. Simon gave us only tantalizing glimpses of the linguistic riches that someday might be available to the world of linguistics.