The Amber Road was an ancient trade route for the transfer of amber from coastal areas of the North Sea and the Baltic Sea to the Mediterranean Sea. Prehistoric trade routes between Northern and Southern Europe were defined by the amber trade. As an important commodity, sometimes dubbed "the gold of the north", amber was transported from the North Sea and Baltic Sea coasts overland by way of the Vistula and Dnieper rivers to Italy, Greece, the Black Sea, Syria and Egypt over a period of thousands of years. Antiquity The oldest trade in amber started from Sicily. The Sicilian amber trade was directed to Greece, North Africa and Spain. Sicilian amber was also discovered in Mycenae by the archaeologist Heinrich Schliemann, and it appeared in sites in southern Spain and Portugal. Its distribution is similar to that of ivory, so it is possible that amber from Sicily reached the Iberian Peninsula through contacts with North Africa. After a decline in the consumption and trade of amber at the beginning of the Bronze Age, around 2000 BC, the influence of Baltic amber gradually took the place of the Sicilian one throughout the Iberian Peninsula starting around 1000 BC The new evidence comes from various archaeological and geological locations on the Iberian Peninsula. From at least the 16th century BC, amber was moved from Northern Europe to the Mediterranean area. The breast ornament of the Egyptian Pharaoh Tutankhamen (c. ) contains large Baltic amber beads. Schliemann found Sicilian amber beads at Mycenae, as shown by spectroscopic investigation. The quantity of amber in the Royal Tomb of Qatna, Syria, is unparalleled for known second millennium BC sites in the Levant and the Ancient Near East. Amber was sent from the North Sea to the Temple of Apollo at Delphi as an offering. From the Black Sea, trade could continue to Asia along the Silk Road, another ancient trade route. In Roman times, a main route ran south from the Baltic coast (modern Lithuania), the entire north–south length of modern-day Poland (likely through the Iron Age settlement of Biskupin), through the land of the Boii (modern Czech Republic and Slovakia) to the head of the Adriatic Sea (Aquileia by the modern Gulf of Venice). Along with amber, other commodities such as animal fur and skin, honey, and wax were exported to the Romans in exchange for Roman glass, brass, gold, and non-ferrous metals