Coppersmith in the context of "Tinsmith"

The Stone Age was a broad prehistoric period during which stone was widely used to make stone tools with an edge, a point, or a percussion surface. The period lasted for roughly 3.4 million years and ended between 4000 BC and 2000 BC, with the advent of metalworking. Because of its enormous timescale, it encompasses 99% of human history.

Though some simple metalworking of malleable metals, particularly the use of gold and copper for purposes of ornamentation, was known in the Stone Age, it is the melting and smelting of copper that marks the end of the Stone Age. In Western Asia, this occurred by about 3000 BC, when bronze became widespread. The term Bronze Age is used to describe the period that followed the Stone Age, as well as to describe cultures that had developed techniques and technologies for working copper alloys (bronze: originally copper and arsenic, later copper and tin) into tools, supplanting stone in many uses.

The Kalderash are a subgroup of the Romani people. They were traditionally coppersmiths and metal workers and speak a number of Romani dialects grouped together under the term Kalderash Romani, a sub-group of Vlax Romani.

The Kalderash of the Balkans and Central Europe, in addition to the Gitanos and Manouche/Sinti, are seen as one of the three main confederations (Romani: natsiya) of Romani people in Europe by certain ethnographers. The Kalderash are recognized as the most numerous confederation of the three. Each main confederation is further split up into two or more subgroups (Romani: vitsa) based on a combination of factors such as occupation, ancestry, or territorial origin. Although originally referring to a specific vitsa of traditional coppersmiths, the name Kalderash is now applied to several Vlax-Speaking Roma groups. Because of this, significant differences in speech and culture can be seen in Western and Eastern Kalderash populations; as evidenced in the differences between the eastern Kalderash of Russia and the western Kalderash of Serbia. Certain scholars have suggested a connection between occupational Romani subgroups and the Caste System of India; with the Kalderash being described as an ancestral stock of the Lohar caste.