The Emerald Tablet is centuries old. It is one of the most famous alchemical texts. The tablet seems to be of particular significance to the time travelers. The line, "That which is below is like that which is above and that which is above is like that which is below," could be interpreted as: In a time loop, everything is interdependent. Another line, "Sic mundus creatus est – Thus the world was created," is the inspiration for the name of Adam's organisation.
Noah has an illustrated version of the text tattooed on his back. One of the men who drilled the tunnel in the Winden cave in 1921 has the same design on his chest. In 1986, a print of the image is hanging in the Winden hospital. It is also present in Ulrich Nielsen's childhood bedroom on the cover of a metal album with the writing, "Tabula Smaragdina: Fist of Hebron.“ All of the various depictions clearly feature an image of the Triquetra.