brother John Wall Callcott lived, among with painters like John Linnell, David Wilkie and William Mulready, and musicians including William Crotch (the first principal of the Royal Academy of Music) and William Horsley (John Callcott's son-in-law). In addition, this close-knit group was frequently visited by artists like John Varley, Edwin Landseer, John Constable and J.M.W. Turner. Graham's lodgings very quickly became a focal point for London's intellectuals, such as the Scottish poet Thomas Campbell, Graham's book publisher John Murray and the historian Francis Palgrave, but her keen interest and knowledge of painting (she was a skilled illustrator of her own books, and had written the book about Poussin) made it inevitable that she would quickly become part of the artists' enclave, as well. Graham and Callcott married on his 48th birthday, 20 February 1827. In May of that year, the Callcotts embarked upon a year-long honeymoon to Italy, Germany and Austria, where they studied the art and architecture of those countries exhaustively and met many of the leading art critics, writers and connoisseurs of the time. Disability In 1831, Maria Callcott ruptured a blood vessel and became physically disabled. She could no longer travel, but she could continue to entertain her friends, and could continue her writing. In 1828, immediately after returning from their honeymoon, she had published A Short History of Spain, and in 1835 the writings during her long convalescence resulted in the publication of two books; Description of the chapel of the Annunziata dell’Arena; or Giotto’s Chapel in Padua, and her first and most famous book for children, Little Arthur’s History of England, which has been reprinted numerous times since then (already in 1851 the 16th edition was published, and it was last reprinted in 1975). Little Arthur was followed in 1836 by a French version; Histoire de France du petit Louis. Geological debate In the mid-1830s her description of the earthquake in Chile of 1822 started a heated debate in the Geological Society, where she was caught in the middle of a fight between two rivalling schools of thought regarding earthquakes and their role in mountain building. Besides describing the earthquake in her Journal of a Residence in Chile, she had also written about it in more detail in a letter to Henry Warburton, who was one of the Geological Society's founding fathers. As this was one of the first detailed eyewitness accounts by "a learned