I of course assume in the reader a certain elementary knowledge of European history, at least as much as may be learned from my own General Sketch. Names and things which have been explained there I have not thought it needful to explain again. I need hardly say that I found myself far more competent to deal with some parts of the work than with others. No one can take an equal interest in, or have an equal knowledge of, all branches of so wide a subject. Some parts of the book will represent real original research; others must be dealt with in a far less thorough way, and will represent only knowledge got up for the occasion. In such cases the reader will doubtless find out the difference for himself. But I have felt my own deficiencies most keenly in the German part. No part of European history is to me more attractive than the early history of the German kingdom as such. No part is to me less attractive than the endless family divisions and unions of the smaller German states. In the Slavonic part I have found great difficulty in following any uniform system of spelling. I consulted several Slavonic scholars. Each gave me advice, and each supported his own advice by arguments which I should have thought unanswerable, if I had not seen the arguments in support of the wholly different advice given me by the others. When the teachers differ so widely, the learner will, I hope, be forgiven, if the result is sometimes a little chaotic. I have tried to write Slavonic names so as to give some approach to the sound, as far as I know it. But I fear that I have succeeded very imperfectly.