One of the most famous mysteries in archeology, the Phaistos Disc. It is fired clay from the Minoan palace of Phaistos on the Greek island of Crete, possibly dating to the middle or late Minoan Bronze Age. So it’s about years old.
The advent of photography in the Victorian era provided an affordable alternative to expensive painted portraits. Grieving families hired post-mortem photographers to capture what was likely to be the only image they had to remember the deceased by.
The Baghdad Battery is believed to be about 2000 years old (from the Parthian period, roughly 250 BCE to CE When filled with vinegar - or any other electrolytic solution - the jar produces about volts.