may have led in turn to the 1950s crisis in geography, which raised serious questions about geography as an academic discipline in the USA. This sub-branch of human geography is closely related to history, environmental history, and historical ecology. List of historical geographers Major institutions The Historical Geography Specialty Group of the American Association of Geographers The Historical Geography Research Group of the Royal Geographical Society Major journals Journal of Historical Geography Historical Geography See also Historical atlas References Further reading Catchpole, Brian. A Map History of the Modern World: 1890 to the Present Day. 1972 ed. Agincourt, Ont.: Bellhaven House, 1972. N.B.: First ed. published in 1968; an earlier revision with corrections appeared in 1970; partly an atlas of historical geography, partly an atlas illustrating historical events and trends. Baker, A.R.H. Geography and History: Bridging the Divide (Cambridge University Press, 2003) Human geography