19th-century philosophy of complexity from mathematics, astronomy, physics, chemistry, biology, and a new discipline called "sociology", which is the study of the "dynamics and statics of society". The American philosophers Charles Sanders Peirce and William James developed the pragmatist philosophy in the late 19th century. The twilight years of the 19th century in Britain saw the rise of British idealism, a revival of interest in the works of Kant and Hegel. Transcendentalism was rooted in Immanuel Kant's transcendence and German idealism, led by Ralph Waldo Emerson and Henry David Thoreau. The main belief was in an ideal spiritual state that 'transcends' the
British and Creole intervention in the Sierra Leone hinterland in the 19th century British and Creole intervention in the Sierra Leone hinterland in the 19th century Sierra Leone assumed its present large geographical size only in 1896. Prior to that, it was only a small colony encompassing roughly the 30-km-long peninsula on which Freetown is located. Initially, the British and Creoles (freed slaves and their descendents) of the Freetown colony had only a very limited involvement in the affairs of the African kingdoms around them; such as it was, it consisted mostly of trading and missionary activity. Over the course of the 19th century this involvement gradually increased. The colonial government was, in