In 1973, a group of archaeologists opened the tomb of the 15th-century Polish king Casimir IV Jagiellon in Kraków, Poland. As with the opening of King Tut’s tomb 50 years before, European media hyped up the event, and the researchers involved allegedly joked that they were risking a curse on the tomb by opening it.
When some of the team members began to die shortly after, some media outlets speculated it was due to a curse. Later, experts discovered traces of deadly fungi inside the tomb that can cause lung illnesses when breathed in. This was the cause of their deaths.
Learn about five more legendary curses as History.com.