Arthur Koestler in his historical book, The Thirteenth Tribe, narrates how a nation lost the name of Khazars and became known as Jews. He describes how at ninth and tenth centuries, the rise of Rus power had a direct impact on the Khazars and the map of Europe. With this, he describes how the Khazar Kingdom disintegrated and fell into pieces and the majority, merged with other close people. The Thirteenth Tribe is a well written and researched book that provided insightful anecdotes when documentary evidence was lacking. But the reader should be open to divergent views of the history of the peoples in question. Koestler made a good case for his hypothesis and presented this in a concise with stories within the past. This study, expounders how Koestler supports Israel while he doubts whether the Zionist Jews are the original Jews or not.
