1788Government
It was founded as Plum Township in 1788 and was reorganized as a borough in 1956.
1927History
Opens (1927, 1935, 1953, 1962, 1973, 1983, 1994, 2007, 2016, and 2025).
1996Disaster
=== House explosions ===
Plum has a history of house explosions beginning in 1996, when one person was killed and one person injured; the explosion was caused by failure of gas ...
2008Disaster
Another explosion on March 5, 2008, which killed one and injured one, was also caused by failure of gas pipes.
2018Education
The latest redistricting was approved by the Plum Borough School Board in 2018.
2020Government
As of January 2020, the mayor is Harry Schlegel.
2022Disaster
On April 22, 2022, an explosion happened which injured five, and the cause has yet to be determined.
2023Disaster
An explosion on August 12, 2023, killed six and injured two, and the cause is being investigated.