I 'found my Tuva' last year, a broad and intriguing topic hiding in the middle-half of the 19th century. And I thought I'd wind up having to go to physical libr

I 'found my Tuva' last year, a broad and intriguing topic hiding in the middle-half of the 19th century. And I thought I'd wind up having to go to physical libraries to get answers to many questions. No, as it turned out; thanks to the copyright-free status of all the excellent, digitized books from that era (and the following 50 years of comments ... also copyright-free). Within a month I had amassed over 2GB of maps, PDFs of original sources (many from Archive.org), and more than enough quality, modern commentary. It was and remains an absorbing adventure tale ... set in an earlier era ... and I never had to leave this desk.