April 29 – Charles Dickens embarks on his first professional tour giving readings from his works. This will involve 129 appearances in 49 towns throughout the British Isles.[2]
Charles Piazzi Smyth – Teneriffe: An Astronomer's Experiment (illustrated by stereoscopic photographs)
Dimitrie Ralet – Suvenire și impresii de călătorie în România, Bulgaria, Constantinopole (Souvenirs and Impressions of Travels in Romania, Bulgaria, Constantinople)
Alfred Russel Wallace – On the Tendency of Varieties to Depart Indefinitely From the Original Type
^ abTheater Week. That New Magazine, Incorporated. 1994. p. 19.
^Hacikyan, Agop Jack; Basmajian, Gabriel; Franchuk, Edward S.; Ouzounian, Nourhan (2005). The Heritage of Armenian Literature: From the eighteenth century to modern times. Detroit: Wayne State University Press. p. 213. ISBN9780814332214.
^Nichanian, Marc (2002). Writers of Disaster: Armenian Literature in the Twentieth Century. Princeton, NJ: Gomidas Institute. p. 87. ISBN9781903656099.
^Kazanjian, David (2003). Loss: The Politics of Mourning. Los Angeles: University of California Press. p. 144. ISBN9780520232365.