on family life, whereas boys' stories were more about adventures. Nonfiction Science, philosophy, and discovery The Victorian era was an important time for the development of science and the Victorians had a mission to describe and classify the entire natural world. Much of this writing does not rise to the level of being regarded as literature but one book in particular, Charles Darwin's On the Origin of Species, remains famous. The theory of evolution contained within the work challenged many of the ideas the Victorians had about themselves and their place in the world. Although it took a long time to be widely accepted, it would dramatically change subsequent thoughts and literature. Much of the work of popularizing Darwin's theories was done by his younger contemporary Thomas Henry Huxley, who wrote widely on the subject. A number of other non-fiction works of the era made their mark on the literature of the period. The philosophical writings of John Stuart Mill covered logic, economics, liberty and utilitarianism. The large and influential histories of Thomas Carlyle, The French Revolution: A History (1837), and On Heroes, Hero-Worship, & the Heroic in History (1841) permeated political thought at the time. The writings of Thomas Babington Macaulay on English history helped codify the Whig narrative that dominated the historiography for many years. John Ruskin wrote a number of highly influential works on art and the history of art and championed such contemporary figures as J. M. W. Turner and the Pre-Raphaelites. The religious writer John Henry Newman's Oxford Movement aroused intense debate within the Church of England, exacerbated by Newman's own conversion to Catholicism, which he wrote about in his autobiography Apologia Pro Vita Sua. A number of monumental references works were published in this era, most notably the Oxford English Dictionary which would eventually become the most important historical dictionary of the English language. Also published during the later Victorian era was the Dictionary of National Biography and the ninth edition of the Encyclopædia Britannica. Nature writing In the United States, Henry David Thoreau's works and Susan Fenimore Cooper's Rural Hours (1850) were canonical influences on Victorian nature writing. In the UK, Philip Gosse and Sarah Bowdich Lee were two of the most popular nature writers in the early part of the Victorian era. The Illustrated London News, founded in 1842, was the world's first illustrated weekly newspaper and often published articles and illustrations