https://en.wikipedia.org/wiki/Dissolution_of_the_monasteries
UK History, period 1536-1541 during which Henry VIII disbanded monasteries, priories, convents, and friaries in England, Wales, and Ireland, expropriated their income, disposed of their assets, and provided for their former personnel and functions. Although the policy was originally envisaged as increasing the regular income of the Crown, much former monastic property was sold off to fund Henry’s military campaigns in the 1540s.
“The dissolution of the monasteries in the late 1530s was one of the most revolutionary events in English history. There were nearly 900 religious houses in England, around 260 for monks, 300 for regular canons, 142 nunneries and 183 friaries; some 12,000 people in total, 4,000 monks, 3,000 canons, 3,000 friars and 2,000 nuns. If the adult male population was 500,000, that meant that one adult man in fifty was in religious orders.”
Along with the destruction of the monasteries, some of them many hundreds of years old, the related destruction of the monastic libraries was perhaps the greatest cultural loss caused by the English Reformation.