50 Archeological Mysteries That Remain Unanswered Even Today

Nebra Sky Disk 

This artifact is 3600 years old was not believed to be an artifact and was thought of as an archeology forgery until it was scientifically proven that it is an authentic artifact and it was preserved from then. The symbols on the disc are deduced to be sun and the moon, the two arcs are at an angle of 82° from one another, which correctly indicates the angle between the sunset position at summer and midwinter at the latitude of the Mittelberg (51°N).