New submitter accet87 writes "We are celebrating the Silver Jubilee of our graduation next month and have come up with an idea where we will build an air-tight chest in which each of us will deposit something and will open the chest only on our Golden Jubilee, i.e. after another 25 years. I want to understand what kind of items can be safely stored for 25 years and what kind of precautions are required to be taken. I am sure things like paper, non-ferrous metallic objects, wood, etc., will hold up well. What about data storage electronically? I don't think CD/DVDs, etc., will be usable. Even if the data is retained, reading it in 2037 may be a challenge."
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