The Nebra sky disk, found near Nebra, Sachsen-Anhalt, Germany. It is dated to c. 1600 BCE, and is associated with the Bronze Age Unetice culture.
This artifact weighs 2.2 kg, and is inlaid with gold symbols. It is thought that this disk was an astronomical instrument, and likely also held religious significance. This find reconfirms the abilities and astronomical knowledge of the people of the European Bronze Age, which included the sun’s angle between its rising and setting points at summer and winter solstice, and close observation of the sun’s course over the year. The Nebra sky disk is the oldest known “portable instrument” showing such measurements.