Among the many joys of doing research, my favourite is best described as “archival serendipity”. When my research kept yielding correspondence in Esperanto I decided to have a look in the Leiden Special Collections. The result: Or. 6767: a complete grammar of Tibetan, explained in Esperanto.
The letters, authored by German Johann Anton Neubronner (1763-1815) on his voyage to the Dutch East Indies are a perfect supplement to three major collections gathered by Neubronner’s famous grandson: Indologist Herman Neubronner van der Tuuk.
Sitting on the shelves of the Special Collections at Leiden University is a bundle of rare reprints of treaties between Russia and China. Important, because copies of original treaties are not something that we, ordinary mortals, may consult.