The word tattoo comes from the Tahitian "tatu" which means "to mark something."
It is arguably claimed that tattooing has existed since 12,000 years BC. The purpose of tattooing varies from culture to culture and its place on the time line. But there are commonalties that prevail form the earliest known tattoos to those being done on today's rock and pop stars.
Tattoos have always had an important role in ritual and tradition. In Borneo, women tattooed their symbols on their forearm indicating their particular skill. If a woman wore a symbol indicating she was a skilled weaver, her status as prime marriageable material was increased. Tattoos around the wrist and fingers were believed to ward away illness. Throughout history tattoos have signified membership in a clan or society. Even today, groups like the Hells Angels tattoo their particular group symbol. TV and movies have used the idea of a tattoo indicating membership in a secret society numerous times. It has been believed that the wearer of an image calls the spirit of that image. The ferocity of a tiger would belong to the tattooed person. That tradition holds true today shown by the proliferation of images of tigers, snakes, and birds of prey.
In recorded history, the earliest tattoos can be found in Egypt during the time of the construction of the great pyramids (It undoubtedly started much earlier). When the Egyptians expanded their empire, the art of tattooing spread as well. The civilizations of Crete, Greece, Persia, and Arabia picked up and expanded the art form. Around 2000 BC tattooing spread to China.
The Greeks used tattooing for communication among spies. Markings identified the spies and showed their rank. Romans marked criminals and slaves. This practice is still carried on today. The Ainu people of western Asia used tattooing to show social status. Girls coming of age were marked to announce their place in society, as were the married women. The Ainu are noted for introducing tattoos to Japan where it developed into a religious and ceremonial rite. In Borneo, women were the tattooists. It was a cultural tradition. They produced designs indicating the owners station in life and the tribe he belonged to. Kayan women had delicate arm tattoos which looked like lacy gloves. Dayak warriors who had "taken a head" had tattoos on their hands. The tattoos garnered respect and assured the owners status for life. Polynesians developed tattoos to mark tribal communities, families, and rank. They brought their art to New Zealand and developed a facial style of tattooing called Moko which is still being used today. There is evidence that the Mayan, Incas, and Aztecs used tattooing in the rituals. Even the isolated tribes in Alaska practiced tattooing, their style indicating it was learned from the Ainu.
In the west, early Britons used tattoos in ceremonies. The Danes, Norse, and Saxons tattooed family crests (a tradition still practiced today). In 787 AD, Pope Hadrian banned tattooing. It still thrived in Britain until the Norman Invasion of 1066. The Normans disdained tattooing. It disappeared from Western culture from the 12th to the 16th centuries.
While tattooing diminished in the west, it thrived in Japan. At first, tattoos were used to mark criminals. First offences were marked with a line across the forehead. A second crime was marked by adding an arch. A third offence was marked by another line. Together these marks formed the Japanese character for "dog". It appears this was the original "Three strikes your out" law. In time, the Japanese escalated the tattoo to an aesthetic art form. The Japanese body suit originated around 1700 as a reaction to strict laws concerning conspicuous consumption. Only royalty were allowed to wear ornate clothing. As a result of this, the middle class adorned themselves with elaborate full body tattoos. A highly tattooed person wearing only a loin cloth was considered well dressed, but only in the privacy of their own home.