Dee ihe ga-aga n'ihu na paragraf a - Mwepụta nke ekwentị n'etiti afọ 1870 gụnyere ọtụtụ ngosipụta nke iji ya maka mgbasa ozi egwu egwu n'ebe dị iche iche. N'otu ihe atụ dị nnọọ elu, Clément Ader kwadebere ebe a na-ege ntị na Ngosi Eletriki Paris nke 1881
, ebe ndị bịara ya nwere ike ige ntị n'ihe ngosi, na stereo, site na Paris Grand Opera. Echiche ahụ pụtakwara na akwụkwọ akụkọ utopian nke 1888 nke Edward Bellamy, "Looking Backward: 2000-1887", nke buru ụzọ hụ ntụrụndụ ọdịyo zitere site na ekwentị na ụlọ ndị mmadụ.