Bronze Age
Bronze Age cultures differed in their development of the first writing. According to archaeological evidence, cultures in Mesopotamia (cuneiform script) and Egypt (hieroglyphs) developed the earliest viable writing systems.
The overall period is characterized by widespread use of bronze, though the place and time of the introduction and development of bronze technology were not universally synchronous. Human-made tin bronze technology requires set production techniques. Tin must be mined (mainly as the tin ore cassiterite) and smelted separately, then added to molten copper to make bronze alloy. The Bronze Age was a time of extensive use of metals and of developing trade networks (See "Tin sources and trade in ancient times"). A 2013 report suggests that the earliest tin-alloy bronze dates to the mid-5th millennium BC in a Vinča culture site in Pločnik (Serbia), although this culture is not conventionally considered part of the Bronze Age. The dating of the foil has been disputed.
Chinese calligraphy
Oracle bone script was one of the forms of Chinese character written on animals bones. Written on oracle bones – animal bones or turtle plastrons, it is the earliest known form of Chinese writing. The first appearance of what we recognize unequivocally to refer as “oracle bone inscriptions” comes in the form of inscribed ox scapula and turtle plastrons from sites near modern Anyang (安阳) on the northern border of Henan province. The vast majority were found at the Yinxu site (in modern Anyang, Henan Province). They record pyromantic divinations of the last nine kings of the Shang dynasty, beginning with Wu Ding, whose accession is dated by different scholars at 1250 BC or 1200 BC. Even though there is no proof that the Shang dynasty were solely responsible for the origin of writing in China, but neither is there evidence of recognizable Chinese writing from any earlier time or any other place. The late Shang oracle bone writings constitute the earliest significant corpus of Chinese writing and it is also the oldest known member and ancestor of the Chinese family of scripts, preceding the Chinese bronze inscriptions.