Period 5 element other metal is not easily oxidized in air and is used to coat other metals to prevent corrosion. The firstalloy, used in large scale since 3000 BC, was bronze, an alloy of tin and copper. After 600 BC pure metallic tin was produced. Pewter, which is an alloy of 85–90% tin with the remainder commonly consisting of copper, antimony and lead, was used for tableware from the Bronze Age until the 20th century. In modern times tin is used in many alloys, most notably tin/lead soft solders, typically containing 60% or more of tin. Another large application for tin is
Hüseyindede vases excavations from 1998 in collaboration with the Çorum Archaeological Museum, fragments of earthenware pottery and parts of four distinct Hittite relief vases were brought to light. Two of them were found in an ancient storeroom; the other two amongst the surrounding debris. They were restored in the museum. Vase B, the smaller one, which includes an image frieze, was published by Sipahi in 2001, while the restoration of Vase A, which has four image friezes, was still ongoing. Vase A was finally published in 2002 by Yıldırım, at the Hittitology congress in Ankara. Hittite relief vases have been known since