This book highlights the use of historical data in natural hazard assessments. Different types of data, such as historical data from written documents, are linked to technically measured data such as stream gauge height and consequently river discharge in order to archive new possibilities of probability determination of respective hazardous processes. In addition, this book strengthens this interdisciplinary approach through the application to different processes of earthquakes, floods, and landslides. Based on worldwide examples, the book introduces how various disciplines address the use of historical data in their respective analysis. These studies might give suggestions of new approaches in their own field derived from applications shown by other disciplines. Audience: This volume is of particular interest to professionals interested and involved in natural hazard assessments, working at research institutions and organisations, large and small scale enterprises, governmental agencies as well as private personnel. However, also advanced students might find the book helpful in addressing specific issues raised in natural hazard courses.