Mir (Russian for "peace" or "world") was the first modular space station -- assembled in orbit from 1986 to 1996 -- and operated in low Earth orbit from 1986 to 2001 by the Soviet Union and, after its fall, by Russia. Mir had a greater mass than that of any previous spacecraft in low Earth orbit, and it held the record for the largest artificial satellite orbiting the Earth until it was surpassed by the International Space Station after Mir's deorbit on March 21, 2001.
Details about the bill coming soon....