Did you know?

In 1961, while prospecting for geodes near Olancha, California, three people discovered the Coso artifact, which is claimed to be a spark plug encased in a 500,000-year-old "geode." If true, the item would be an historical anomaly since spark plugs weren't invented until the 19th century.
Picture The Coso Artifact – A Spark Plug Encased in Ancient Geode