Over the last several years, similar petroglyphs have been identified on as many as five continents. They all date from roughly the same time-period.

In the late 20th century, archaeologists discovered a collection of symbols carved in stone as petroglyphs in the Negev desert of Israel that appeared to be writing. Dating of these symbols showed that they were made over an extended period time, beginning around 1700 BC.

...discovered the same collection of symbols carved in heavily patinated stones surrounding the Southeast town of La Junta, Colorado. Dating of the patina corresponded to the same era as the writing found in Harkarkom in Israel.

The petroglyphs in Colorado were photographed and posted on the Internet. Within a few years, images of similar petroglyphs were sent to the site where the images were hosted, Viewzone, by archaeologists and historians from many different global locations. This included a huge collection of writing from the Republic of Yemen at the site of the palace of the Queen of Sheba.

Strangely, both the writing in Colorado and Yemen spoke of a similar event, possibly related to the Sun, which was prophesied to change human civilization. Subsequent translations of sites in Oklahoma, Australia and South America have added more details about this future event.

The majority of the petroglyphs have already been verified to be of ancient origin, which makes it quite puzzling to experts.