You turn 100 only once, and the Mt. Lebanon Commission will celebrate Mt. Lebanon’s 100th centennial at a special meeting, followed by a party, at 8 p.m., Monday, February 6.

Meanwhile, the Historical Society of Mount Lebanon will debut its newest exhibit, Mt. Lebanon: The First 100 Years, on Saturday, February 4. The exhibit will feature a timeline of significant events (pre- and post-1912), items from the society’s collection and old photographs of the community. The center, at 200 Lebanon Avenue, will be open 9 a.m. to 2 p.m., on February 4, and the exhibit will run through the end of 2012.

The Mt. Lebanon Fire Department will celebrate the centennial with an open house and “push in” ceremony from  4 to 6 p.m., Saturday, February 4, when the department’s new fire truck will arrive. At a push-in, firefighters (and others who may want to help) push the new truck into the garage. This is an old fire house tradition that dates back to when firefighting vehicles were horse drawn. When the horses were released from the apparatus, the firefighters then pushed the vehicle into the fire house. The ceremony joins the past to the present. The event also will feaure an exhibit of historic items and photographs from the department.

Mark your calendars now for the Saturday, September 8, centennial parade, which will start on Washington Road near Cochran, progress along Washington Road and end at Mt. Lebanon  Cemetery.  The afternoon parade will feature bands, musical groups, floats,  notable Mt. Lebanon residents, community organizations, historical re-enactors, the police honor guard and much more. After the parade, the celebration will continue Uptown with music, food, fireworks and entertainment. The parade committee is looking for groups to participate and people to work on the various planning committees. For information or to volunteer, contact Chief Nick Sohyda, 412-343-3402 or nsohyda@mtlebanon.org.