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Flag

Piece of fabric with a distinctive design and colours

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The Allée des Nations in front of the Palace of Nations ( United Nations Office at Geneva ).
Tom Page · CC BY-SA 2.0

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The first flags were used to aid military coordination on the battlefield, and flags have since evolved into a common tool for basic signalling and identification, especially in environments where communication is challenging (such as maritime environments where semaphore is used). The national flag is a common patriotic symbol of a country, and many national or other flags may be assigned to flag families based on similarities in their designs that demonstrate a shared history, culture, or influence. Flags are also used in messages, advertising, or for other decorative purposes.

History

The origin of the flag is unknown and it remains unclear when the first flag was raised. Ships with vexilloids were represented on predynastic Egyptian pottery c. 3500 BC. In antiquity, field signs that can be categorised as vexilloid or "flag-like" were used in warfare, originating in ancient Egypt or Assyria. Examples include the Sassanid battle standard Derafsh Kaviani, and the standards of the Roman legions such as the eagle of Augustus Caesar's Xth legion and the dragon standard of the Sarmatians; the latter was allowed to fly freely in the wind, carried by a horseman, but depictions suggest that it bore more similarity to an elongated dragon kite than to a simple flag.

While the origin of the flag remains a mystery, the oldest flag discovered is made of bronze: a Derafsh or 'flag-like' Shahdad, which was found in Shahdad in Iran, and dates back to c. 2400 BC. It features a seated man and a kneeling woman facing each other, with a star in between. This iconography was found in other Iranian Bronze Age pieces of art.

Flags made of cloth were almost certainly the invention of the ancient peoples of the Indian subcontinent or the Zhou dynasty of Ancient China. Chinese flags had iconography such as a red bird, a white tiger, or a blue dragon, and royal flags were to be treated with a level of respect similar to that given to the ruler. Indian flags were often triangular and decorated with attachments such as a yak's tail and the state umbrella. Silk flags either spread to the Near East from China or it was just the silk itself, later fashioned by people who had independently conceptualised a rectangular cloth attached to a pole. They are often mentioned in the early history of Islam and may have been copied from India.

European flags are an independent invention. In the Roman world, the vexillum was a cloth military flag: Schmöger describes it as the only Roman cloth flag, used as a cavalry flag, detachment flag, signal flag, imperial standard, religious flag and provincial symbol, and as "the root of the modern European flag tradition". The Christian Roman labarum, first used by Constantine in the 4th century, was a version of the vexillum; although usually suspended from a horizontal bar, it was also sometimes displayed by fastening one side to the staff.

In medieval Europe, flags developed in connection with warfare, Christianity, heraldry, monarchy, cities, guilds and maritime identification. Heraldic flags included pennons, banners, standards, royal standards, ensigns, military standards and colours; in English heraldic usage, pennons were personal lance flags, banners bore the arms of the owner, and standards displayed livery colours and badges. Modern national flags, in the strict political sense, are associated with early modern and modern state formation, citizenship, revolution and nationalism; Elgenius describes national flags as markers of nation-building in the modern period, especially after the political changes associated with 1789.

During the peak of the sailing age, beginning in the early 17th century, it was customary (and later a legal requirement) for ships to fly flags designating their nationality; these flags eventually evolved into the national flags and maritime flags of today. Flags also became the preferred means of communications at sea, resulting in various systems of flag signals; see, International maritime signal flags.

Use of flags beyond a military or naval context began with the rise of nationalism by the end of the 18th century, although some flags date back earlier. The flags of countries such as Austria, Denmark or Turkey have legendary origins while many others, including those of Poland and Switzerland, grew out of the heraldic emblems of the Middle Ages. The 17th century saw the birth of several national flags through revolutionary struggle. One of these was the flag of the Netherlands, which appeared during the 80-year Dutch rebellion which began in 1568 against Spanish domination.

Political change and social reform, allied with a growing sense of nationhood among ordinary people, led to the creation of new nations and flags all over the world in the 19th and 20th centuries.

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Source and licence. Adapted from the Wikipedia article “Flag” (this version, 2026-09-06) by its contributors, shared under CC BY-SA 4.0. Lablypedia has left out its tables, references and most pictures, and linked it to other Lablypedia articles.