This is Volume 1 of Dangerous Language. This book examines the rise of the international language Esperanto, launched in 1887 as a proposed solution to national conflicts and a path to a more tolerant world. The chapters in this volume chart the emergence of Esperanto as an answer to a widespread democratic desire for direct person-to-person international communication regardless of political boundaries. Its early success was limited, mostly because of the Czarist regime's suspicion of direct communication with foreigners, and, later, similar suspicion by dictatorial regimes generally. As speakers of a "dangerous language," its adepts were harassed and persecuted, especially in Germany and the Soviet Union. This book argues that the fate of Esperanto over the 130 years of its existence serves as a barometer to measure the degree to which regimes tolerate spontaneous personal contact with other countries and allow the pursuit of self-education outside prescribed national or ideological constraints. This book will appeal to a wide readership, including linguists, historians, political scientists and others interested in the history of the twentieth century from the unusual perspective of language. This volume is complemented by the sister volume Dangerous Language - Esperanto and the Decline of Stalinism which offers a concentration on the Cold War history of Esperanto in Eastern Europe.

“Humphrey Tonkin’s English translation of Ulrich Lins’ work … offers a comprehensive analysis of the advent and diffusion of the International Language, charting its development from the embryonic wrangling of creator Lazar Zamenhof amidst the pogroms of the Russian Empire, to the language’s reactionary reception by Nazi and Soviet authorities. … Lins explores the invented language’s history methodically and intimately, resulting in a text that is admirably accessible to the interested layperson and the invested academic alike.” (David Selfe, The Kelvongrove Review, Issue 16, June, 2017) 

Ulrich Lins received his doctorate at the University of Cologne, Germany, with a dissertation on Japanese nationalism (published in 1976). For thirty years he worked for DAAD, the German Academic Exchange Service in its headquarters in Bonn, and served two tours of duty as head of its office in Tokyo. He has edited numbers of books in German and Japanese on German-Japanese relations and on Germany following reunion. The present volume, written originally in Esperanto, has appeared in German, Italian, Japanese, Korean, Russian, and Lithuanian translations.
Humphrey Tonkin is President Emeritus of the University of Hartford, USA, where he served as University Professor of Humanities. He studied English and comparative literature at Cambridge and Harvard (Ph.D. 1966) and has written widely on literary topics and on international education and language policy.  He has published numbers of translations from English to Esperanto and from Esperanto to English.