Delpher is a website providing full-text Dutch-language digitized historical newspapers, books, journals and copy sheets for radio news broadcasts. The material is provided by libraries, museums and other heritage institutions[1] and is developed and managed by the Royal Library of the Netherlands. Delpher is freely available and includes as of June 2022 in total over 130 million pages from about 2 million newspapers, 900,000 books and 12 million journal pages that date back to the 15th century.[2]