"Bede's Ecclesiastical History" is a historical work written by the Anglo-Saxon monk Bede in the 8th century. It chronicles the history of the Christian Church in Britain from its origins to the year 731. The text is notable for its detailed accounts of the spread of Christianity and the lives of early saints, providing valuable insights into the religious and cultural landscape of the time. The work is divided into five books and is considered one of the most important sources for early British history. Bede used various sources, including oral traditions and earlier writings, to compile this comprehensive history, which has influenced both historical scholarship and the understanding of Christianity in England.