Download or read book Expecting the Unexpected written by Horst J. Simon and published by Walter de Gruyter. This book was released on 2011 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this article, the distribution of rare features among the world's languages is investigated based on the data from the World Atlas of Language Structures (Haspelmath et al. 2005). A Rarity Index for a language is defined, resulting in a listing of the world's languages by mean rarity. Further, a Group Rarity Index is defined to be able to measure average rarity of genealogical or areal groups. One of the most exceptional geographical areas turns out to be northwestern Europe. A closer investigation of the characteristics that make this area exceptional concludes this article.