In a memorandum for the Committee of Imperial Defence dated 10 July 1920 Harold Nicolson, whose family connection with these matters dated back to the time when his father Lord Carnock entered the Foreign Office, namely 1870, wrote:
Cross Currents and Community Networks is an important contribution to a growing literature on the Indian Ocean world. Edited by historians Himanshu Prabha Ray and Edward A. Alpers, it brings together leading figures to discuss the cultural landscape of the Indian Ocean world and the communities that crossed it.
The main aim of this book is to answer the following question: how does one account for the speed with which the Arab empire was built? The period covered extends from the rise of Islam down to the middle of the eighth century.