Greece
The ancient Greeks regarded the beard as a badge or sign of virility; in the Homeric epics it had almost sanctified significance, so that a common form of entreaty was to touch the beard of the person addressed. It was only shaven as a sign of mourning, though in this case it was instead often left untrimmed. A smooth face was regarded as a sign of effeminacy. The Spartans punished cowards by shaving off a portion of their beards. From the earliest times, however, the shaving of the upper lip was not uncommon. Greek beards were also frequently curled with tongs.
India
In ancient India, the beard was allowed to grow long, a symbol of dignity and of wisdom. The nations in the east generally treated their beards with great care and veneration, and the punishment for licentiousness and adultery was to have the beard of the offending parties publicly cut off. They had such a sacred regard for the preservation of their beards that a man might pledge it for the payment of a debt.
Iran
The Iranians were fond of long beards, and almost all the Iranian kings had a beard. In Travels by Adam Olearius, a King of Iran commands, his steward’s head to be cut off, and on its being brought to him remarks, “what a pity it was, that a man possessing such fine mustachios, should have been executed.” Men in the
Achaemenid era wore long beards, warriors adorning theirs with jewellery. Men also commonly wore beards during the Safavid and Qajar eras.
Kingdom of Macedonia
In the time of Alexander the Great (356 BC–323 BC) the custom of smooth shaving was introduced. Reportedly, Alexander ordered his soldiers to be clean-shaven, fearing that their beards would serve as handles for their enemies to grab and to hold the soldier as he was killed. The practice of shaving spread from the Macedonians, whose kings are represented on coins, etc. with smooth faces, throughout the whole known world of the Macedonian Empire.
Laws were passed against it, without effect at Rhodes and Byzantium; and even Aristotle conformed to the new custom, unlike the other philosophers, who retained the beard as a badge of their profession. A man with a beard after the Macedonian period implied a philosopher, and there are many allusions to this custom of the later philosophers in such proverbs as: “The beard does not make the sage.”
Mesopotamia
Mesopotamian civilizations (Sumerian, Assyrians, Babylonians, Chaldeans and Medians) devoted great care to oiling and dressing their beards, using tongs and curling irons to create elaborate ringlets and tiered patterns.
Egypt
The highest ranking Ancient Egyptians grew hair on their chins which was often dyed or hennaed (reddish brown) and sometimes plaited with interwoven gold thread. A metal false beard, or postiche, which was a sign of sovereignty, was worn by queens and kings. This was held in place by a ribbon tied over the head and attached to a gold chin strap, a fashion existing from about 3000 to 1580 BC.
China
Confucius held that the human body was a gift from one’s parents to which no alterations should be made. Aside from abstaining from body modifications such as tattoos, Confucians were also discouraged from cutting their hair, fingernails or beards. To what extent people could actually comply with this ideal depended on their profession; farmers or soldiers could probably not grow long beards as it would have interfered with their work.
Most of the clay soldiers in the Terracotta Army have moustaches or goatees but shaved cheeks, indicating that this was likely the fashion of the Qin dynasty. Most Chinese beards are thin and the moustaches were kept similar to cat’s whiskers.
Celts and Germanic tribes
Late Hellenistic sculptures of Celts portray them with long hair and moustaches but beardless.
Among the Gaelic Celts of Scotland and Ireland, men typically let their facial hair grow into a full beard, and it was often seen as dishonourable for a Gaelic man to have no facial hair.
Tacitus states that among the Catti, a Germanic tribe (perhaps the Chatten), a young man was not allowed to shave or cut his hair until he had slain an enemy. The Lombards derived their name from the great length of their beards (Longobards – Long Beards). When Otto the Great said anything serious, he swore by his beard, which covered his breast.
Lebanon
The ancient Semitic civilization situated on the western, coastal part of the Fertile Crescent and centred on the coastline of modern Lebanon gave great attention to the hair and beard. Where the beard has mostly a strong resemblance to that affected by the Assyrians, and familiar to us from their sculptures, it is arranged in three, four, or five rows of small tight curls, and extends from ear to ear around the cheeks and chin. Sometimes, however, in lieu of the many rows, we find one row only, the beard falling in tresses, which are curled at the extremity. There is no indication of the Phoenicians having cultivated mustachios.
Rome
Shaving seems to have not been known to the Romans during their early history (under the kings of Rome and the early Republic). Pliny tells us that P.Ticinius was the first who brought a barber to Rome, which was in the 454th year from the founding of the city (that is, around 299 BC). Scipio Africanus was apparently the first among the Romans who shaved his beard. However, after that point, shaving seems to have caught on very quickly, and soon almost all Roman men were clean-shaven; being clean-shaven became a sign of being Roman and not Greek. Only in the later times of the Republic did the Roman youth begin shaving their beards only partially, trimming it into an ornamental form; prepubescent boys oiled their chins in hopes of forcing premature growth of a beard.
Still, beards remained rare among the Romans throughout the Late Republic and the early Principate. In a general way, in Rome at this time, a long beard was considered a mark of slovenliness and squalor. The censors L. Veturius and P. Licinius compelled M. Livius, who had been banished, on his restoration to the city, to be shaved, and to lay aside his dirty appearance, and then, but not until then, to come into the Senate.
The first occasion of shaving was regarded as the beginning of manhood, and the day on which this took place was celebrated as a festival. Usually, this was done when the young Roman assumed the toga virilis. Augustus did it in his twenty-fourth year, Caligula in his twentieth. The hair cut off on such occasions was consecrated to a god. Thus Nero put his into a golden box set with pearls, and dedicated it to Jupiter Capitolinus. The Romans, unlike the Greeks, let their beards grow in time of mourning; so did Augustus for the death of Julius Caesar. Other occasions of mourning on which the beard was allowed to grow were, appearance as a rues, condemnation, or some public calamity. On the other hand, men of the country areas around Rome in the time of Varro seem not to have shaved except when they came to market every eighth day, so that their usual appearance was most likely a short stubble.
In the second century AD the Emperor Hadrian, according to Dion Cassius, was the first of all the Caesars to grow a beard; Plutarch says that he did it to hide scars on his face. This was a period in Rome of widespread imitation of Greek culture, and many other men grew beards in imitation of Hadrian and the Greek fashion. Until the time of Constantine the Great, the emperors appear in busts and coins with beards; but Constantine and his successors until the reign of Phocas, with the exception of Julian the Apostate, are represented as beardless.
Middle Ages
In the Middle-Age Europe, a beard displayed a knight’s virility and honour. The Castilian knight El Cid is described in The Lay of the Cid as “the one with the flowery beard”. Holding somebody else’s beard was a serious offence that had to be righted in a duel.
While most noblemen and knights were bearded, the Catholic clergy were generally required to be clean-shaven. This was understood as a symbol of their celibacy.
In pre-Islamic Arabia men would apparently keep moustaches but shave the hair on their chins. The prophet Muhammad encouraged his followers to do the opposite, long chin hair but trimmed moustaches, to signify their break with the old religion. This style of beard subsequently spread along with Islam during the Muslim expansion in the Middle Ages.