tidsskall
Tidsskall is a term of Swedish origin that translates to "time shell" or "time capsule." It generally refers to a repository of objects or information intended to be preserved for discovery at a future date. This concept is similar to the more globally recognized term "time capsule."
The contents of a tidsskall can vary widely. They might include personal mementos, contemporary documents, cultural
Tidsskaller are typically sealed and buried or stored in a secure location, with instructions for their opening