Ọrụ Geographical nke Ndị Agha Gris
History dezie
Ntọala guzosie ike na 1889 dị ka "Geodetic Mission" na ebumnuche nke ịchịkọta "Topographic na Cadastral Map of the Country", ọrụ ahụ nwetara aha ya ugbu a na 1926. Taa, ọ na-akwado ma ndị agha Greek na ọha na eze na ngwaahịa cartographic. [1]
Site na 1966 ruo na 1980s, ọrụ ahụ nwere ụlọ ọrụ mgbasa ozi nke ndị agha, onye mgbasa ozi steeti nke abụọ nke Gris n'akụkụ National Radio Foundation.