This book presents the English translation of Sylvain Levi's monumental three-volume work, Le Nepal: Etude Historique d'un Royaume Hindou (1905), originally published in French. While the present translation encompasses Books I and II, Book III, consisting solely of inscriptions, has been omitted. At the time of Levi's visit, Nepal was a kingdom, a status it maintained from the Licchavi period (5th century) until 2008, when the monarchy was abolished. While the title "Historical Study of a Hindu Kingdom" may appear anachronistic today, it faithfully reflects the original work's context, written over 120 years ago when Nepal was a Hindu kingdom. Changing the title due to the country's political transformation would be inappropriate.