Sweden has the odd PhD tradition of Lutherishly nailing your thesis to a wall a few weeks before your defense, so here is my PhD student Vidya Somashekarappa nailing her thesis into the designated thesis nailing wall (officially required btw). pic.twitter.com/2s8DiwCy1l
— Asad Sayeed @asayeed@zirk.us (@asayeed) April 3, 2024
Sweden is historically a Lutheran nation, so the tradition of nailing statements to buildings is strong. At Umeå University, when doctoral students complete their theses, they nail a copy to the wall of the library in a ceremony called spikning or "thesis spiking." The library's website says that this procedure "is no longer mandatory," implying that, at some point, it was a formal requirement. Still, many students choose to participate in this ritual.