Merchant in the context of "Póvoa de Varzim"

Nomads are communities without fixed habitation who regularly move to and from areas. Such groups include hunter-gatherers, pastoral nomads (owning livestock), tinkers and trader nomads. In the twentieth century, the population of nomadic pastoral tribes slowly decreased, reaching an estimated 30–40 million nomads in the world as of 1995.

Nomadic hunting and gathering—following seasonally available wild plants and game—is by far the oldest human subsistence method known. Pastoralists raise herds of domesticated livestock, driving or accompanying them in patterns that normally avoid depleting pastures beyond their ability to recover. Nomadism is also a lifestyle adapted to infertile regions such as steppe, tundra, or ice and sand, where mobility is the most efficient strategy for exploiting scarce resources. For example, many groups living in the tundra are reindeer herders and are semi-nomadic, following forage for their animals.

Hermes (/ˈhɜːrmiːz/; Ancient Greek: Ἑρμῆς) is an Olympian deity in ancient Greek religion and mythology considered the herald of the gods. He is also widely considered the protector of human heralds, travelers, thieves, merchants, and orators. He is able to move quickly and freely between the worlds of the mortal and the divine aided by his winged sandals. Hermes plays the role of the psychopomp or "soul guide"—a conductor of souls into the afterlife.

In myth, Hermes functions as the emissary and messenger of the gods, and is often presented as the son of Zeus and Maia, the Pleiad. He is regarded as "the divine trickster", about which the Homeric Hymn to Hermes offers the most well-known account.

Islam is India's second-largest religion, with 14.2% of the country's population, or approximately 172.2 million people, identifying as adherents of Islam in a 2011 census. India has the third-largest number of Muslims in the world. Most of India's Muslims are Sunni, with Shia making up around 15% of the Muslim population.

Islam first spread in southern Indian communities along the Arab coastal trade routes in Gujarat and in Malabar Coast shortly after the religion emerged in the Arabian Peninsula. Later, Islam arrived in the northern inland of Indian subcontinent in the 7th century when the Arabs invaded and conquered Sindh. It arrived in Punjab and North India in the 12th century via the Ghaznavids and Ghurids conquest and has since become a part of India's religious and cultural heritage. The Barwada Mosque in Ghogha, Gujarat built before 623 CE, Cheraman Juma Mosque (629 CE) in Methala, Kerala and Palaiya Jumma Palli (or The Old Jumma Masjid, 628–630 CE) in Kilakarai, Tamil Nadu are three of the first mosques in India which were built by seafaring Arab merchants. According to the legend of Cheraman Perumals, the first Indian mosque was built in 624 CE at Kodungallur in present-day Kerala with the mandate of the last ruler (the Tajudeen Cheraman Perumal) of the Chera dynasty, who converted to Islam during the lifetime of the Islamic prophet Muhammad (c. 570–632). Similarly, Tamil Muslims on the eastern coasts also claim that they converted to Islam in Muhammad's lifetime. The local mosques date to the early 700s.

The estates of the realm, or three estates, were the broad orders of social hierarchy used in Christendom from the Middle Ages to early modern Europe. Different systems for dividing society members into estates developed and evolved over time.

• The best known system is the French Ancien Régime (Old Regime), a three-estate system which was made up of a First Estate of clergy, a Second Estate of titled nobles, and a Third Estate of all other subjects (both peasants and bourgeoisie).
• In some regions, notably Sweden and Russia, burghers (the urban merchant class) and rural commoners were split into separate estates, creating a four-estate system with rural commoners ranking the lowest as the Fourth Estate.
• In Norway, the taxpaying classes were considered as one, and with a very small aristocracy; this class/estate was as powerful as the monarchy itself. In Denmark, however, only owners of large tracts of land had any influence. Furthermore, the non-landowning poor could be left outside the estates, leaving them without political rights.
• In England, a two-estate system evolved that combined nobility and clergy into one lordly estate with "commons" as the second estate. This system produced the two houses of parliament, the House of Commons and the House of Lords.
• In southern Germany, a three-estate system of nobility (princes and high clergy), knights, and burghers was used; this system excluded lower clergy and peasants altogether.
• In Scotland, the Three Estates were the Clergy (First Estate), Nobility (Second Estate), and Shire Commissioners, or "burghers" (Third Estate), representing the bourgeoisie and lower commoners. The Estates made up a Scottish Parliament.

Today, the terms three estates and estates of the realm may sometimes be re-interpreted to refer to the modern separation of powers in government into the legislature, administration, and the judiciary. The modern term the fourth estate invokes medieval three-estate systems, and usually refers to some particular force outside that medieval power structure, most commonly the independent press or the mass media.

The Sudanese Greeks, or Greeks in Sudan, are ethnic Greeks from modern-day Sudan; they are small in number (estimated at around 150 in 2015), but still a very prominent community in the country. Historically, this diverse group has played a significant role in the political, economic, cultural, and sporting life of Sudan, as they have been one of the few European immigrant communities of considerable size and economic power.

Following cultural exchanges in ancient and medieval times, a few hundred Greeks – mostly military officers and traders – settled in the six decades after the 1820 Egyptian-Turkish conquest of what became modern Sudan. About one hundred of them stayed, either forcedly or deliberately, when the Ottoman occupiers were defeated by the local Mahdist forces in 1885. With the establishment of the Anglo-Egyptian Sudan in 1898, Greek merchants, administrators and artisans de facto became the stalwarts of the British-dominated colonial regime. By the time Sudan gained independence in 1956, their numbers had increased to around 6,000-7,000, but soon afterwards decreased, especially after the nationalisation of many businesses in 1969 and the introduction of Sharia law in 1983.

The bourgeoisie are a class of business owners, merchants and wealthy people, in general, which emerged in the Late Middle Ages, originally as a "middle class" between the peasantry and aristocracy. They are traditionally contrasted with the proletariat by their wealth, political power, and education, as well as their access to and control of cultural, social, and financial capital.

The bourgeoisie in its original sense is intimately linked to the political ideology of liberalism and its existence within cities, recognised as such by their urban charters (e.g., municipal charters, town privileges, German town law), so there was no bourgeoisie apart from the citizenry of the cities. Rural peasants came under a different legal system.

Cosmas Indicopleustes (Koine Greek: Κοσμᾶς Ἰνδικοπλεύστης, lit. 'Cosmas who sailed to India'; also known as Cosmas the Monk) was a merchant and later hermit from Alexandria in Egypt. He was a 6th-century traveller who made several voyages to India during the reign of emperor Justinian. His work Christian Topography contained some of the earliest and most famous world maps.Cosmas was a pupil of the East Syriac Patriarch Aba I and was himself a follower of the Church of the East.

A guild (/ɡɪld/, GILD) is an professional association of artisans and merchants who oversee the practice of their craft/trade in a particular territory. The word derived from medieval Europe where guilds were probably at their most extensive, but it has been used to describe similar groups before and after that period and in other parts of the world. Typically the key "privilege" was that only guild members were allowed to sell their goods or practice their skill within a city. There might be controls on minimum or maximum prices, hours of trading, numbers of apprentices, and many other things. Critics argued that these rules reduced free competition, but defenders maintained that they protected professional standards.