Bronze statue of a boy removing a thorn from his foot. Copy of a famous statue.

Bronze continues into modern times as one of the materials of choice for monumental statuary. This beautiful and decorative classic cast bronze from the turn of the 19th century is of a seated boy removing a thorn from his foot. The original in bronze is in the Palazzo dei Conservatori in Rome, whilst there is a marble version in the Uffizi Gallery in Florence. Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (such as tin, aluminium, manganese, nickel, or zinc) and sometimes non-metals or metalloids such as arsenic, phosphorus or silicon. These additions produce a range of alloys that may be harder than copper alone, or have other useful properties, such as strength, ductility, or machinability. The archaeological period in which bronze was the hardest metal in widespread use is known as the Bronze Age. The beginning of the Bronze Age in India and western Eurasia is conventionally dated to the mid-4th millennium BCE, and to the early 2nd millennium BCE in China; elsewhere it gradually spread across regions. The Bronze Age was followed by the Iron Age starting from about 1300 BCE and reaching most of Eurasia by about 500 BCE, although bronze continued to be much more widely used than it is in modern times. Because historical pieces were often made of brasses (copper and zinc) and bronzes with different compositions, modern museum and scholarly descriptions of older objects increasingly use the generalized term "copper alloy" instead.