Oregon

The building was the site of an explosion in April 1970 due to four to five sticks of dynamite set outside its basement window. The building was one of several that were subject to makeshift bombings in the late 1960s and early 1970s, a list which included the $75,000 damage done to Prince Lucien Campbell Hall in October 1970. Johnson’s damage was estimated at $8,660. The bomber was never identified.


The 60's were much more radical than most people realize.

https://www.dailyemerald.com/news/historic-johnson-hall-past-witness-to-protests-bombing-attempts/article_a1c4601a-32dc-5d87-b5c8-61c55e38d482.html