literally, world; in tsarist Russia, a village community or gathering of peasants
Mir (Мир, which can mean both world and peace in Russian) was a Soviet (and later Russian) orbital station. It was humanity's first consistently inhabited long-term research station in space. Mir currently holds the record for longest continuous human presence in space at eight days less than 10 years.
The Russian word mir (мир), besides its direct meanings of peace and world, had some other meanings related to social organization in Imperial Russia. The first meaning was to denote the secular part of the society organization, as opposed to church organization. The second meaning was used in Imperial Russia to denote local self-government of peasant communities, called obshchinas.
MIR is a self-propelled submersible. The project was initially developed by the Soviet Academy of Sciences along with Design Bureau Lazurith. Later two vehicles were ordered from Finland.