Mysteries From Ancient Times That Still Defy Explanation

Rongorongo Tablet

Everyone has seen the giant stone heads on Easter Island, but there is a greater mystery there. The Rongorongo Tablet was first discovered in 1864 but dates back to around 1200. Instead of letters, there is a series of glyphs which seem to have been carved into wooden planks using a shark tooth. No one has yet been able to translate the language, which is particularly intriguing because it is a language that developed without outside influences.