James Hilton (novelist) picked "Lost Horizon" as its first title in 1939. For that reason, the novel is frequently called the book that began the "paperback revolution." Hilton is said to have been inspired to write "Lost Horizon", and to invent "Shangri-La" by reading the "National Geographic Magazine" articles of Joseph Rock, an Austrian-American botanist and ethnologist exploring the southwestern Chinese provinces and Tibetan borderlands. Still living in Britain at the time, Hilton was perhaps influenced by the Tibetan travel articles of early travellers in Tibet whose writings were found in the British Library. Christian Zeeman, the Danish father of the mathematician Christopher
Paradise Lost viewed marriage as an entity separate from the church. Discussing "Paradise Lost", Biberman entertains the idea that "marriage is a contract made by both the man and the woman". These ideas imply Milton may have favored that both man and woman have equal access to marriage and to divorce. Milton's 17th-century contemporaries by and large criticised his ideas and considered him as a radical, mostly because of his Protestant views on politics and religion. One of Milton's most controversial arguments centred on his concept of what is idolatrous, which subject is deeply embedded in "Paradise Lost". Milton's first criticism of