Well, you don't get much further back than this! This amazing example of overlapping eras of history, brought out in these rock carvings, has been a part of my hometown as long as anyone can remember...long before it was taken to live in its current shelter next to city hall. The text of the background sign reads: "This is the famous Red Bird Petroglyph, known since pioneer days and enrolled on the National Register of Historic Sites. On December 7, 1994, this historic stone fell from a sandstone cliff and rolled onto Highway 66 on Lower Red Bird. On December 9, 1994, it was transported here and set up in its new home. At least 8 Old World alphabets are engraved on it. These alphabets were extinct when Columbus arrived in the New World in 1492. The alphabets are first century Greek and Hebrew, Old Libyan, Old Arabic and Iberian-Punic which probably dates from the 9th century B.C. Ogam, Germanic Runes, and Tiffinag-Numidian are also on this stone. Of all the hundreds of important, translatable, and published inscriptions in the USA, this is the first one to have been given official protection. Clay County and the City of Manchester (Kentucky) have granted protection to this Stone."