Middle Ages

Slavery in medieval Europe was widespread. Europe and North Africa were part of an interconnected trade network across the Mediterranean Sea, and this included slave trading. During the medieval period, wartime captives were commonly forced into slavery. As European kingdoms transitioned to feudal societies, a different legal category of unfree persons – serfdom – began to replace slavery as the main economic and agricultural engine. Throughout medieval Europe, the perspectives and societal roles of enslaved peoples differed greatly, from some being restricted to agricultural labor to others being positioned as trusted political advisors.

Pereiaslav is a historical city in Boryspil Raion, Kyiv Oblast, central Ukraine. It is located near the confluence of the Alta and Trubizh rivers some 95 km (59.03 mi) southeast of the capital Kyiv. It was one of the key regional centers of power during the Middle Ages and served as the capital of a principality. Pereiaslav hosts the administration of Pereiaslav urban hromada, one of the hromadas of Ukraine. Its population is approximately 26,273 (2022 estimate).

Possessing more than 20 museums, Pereiaslav is often described as a "living museum", and was granted the status of Historical and Ethnographic Reserve [uk].

British republicans seek to replace the United Kingdom's monarchy with a republic led by an elected head of state. Monarchy has been the form of government used in the United Kingdom and its predecessor domains almost exclusively since the Middle Ages, except for a brief interruption from 1649–1660, during which a nominally republican government did exist under the leadership of Oliver Cromwell.

After Cromwell's Protectorate fell and the monarchy was restored, governing duties were increasingly handed to Parliament, especially as a result of the Glorious Revolution of 1688. The adoption of the constitutional monarchy system made the argument for full republicanism less urgent. It was once again a topic of discussion during the late 18th century with the American Revolution, and grew more important with the French Revolution, when the concern was how to deal with the French Republic on their doorstep. This led to a widespread anti-republican movement in Britain, and the issue was dormant for a time.

Anarchy is a form of society without rulers. As a type of stateless society, it is commonly contrasted with states, which are centralized polities that claim a monopoly on violence over a permanent territory. Beyond a lack of government, it can more precisely refer to societies that lack any form of authority or hierarchy. While viewed positively by anarchists, the primary advocates of anarchy, it is viewed negatively by advocates of statism, who see it in terms of social disorder.

The word "anarchy" was first defined by Ancient Greek philosophy, which understood it to be a corrupted form of direct democracy, where a majority of people exclusively pursue their own interests. This use of the word made its way into Latin during the Middle Ages, before the concepts of anarchy and democracy were disconnected from each other in the wake of the Atlantic Revolutions. During the Age of Enlightenment, philosophers began to look at anarchy in terms of the "state of nature", a thought experiment used to justify various forms of hierarchical government. By the late 18th century, some philosophers began to speak in defence of anarchy, seeing it as a preferable alternative to existing forms of tyranny. This lay the foundations for the development of anarchism, which advocates for the creation of anarchy through decentralisation and federalism.

The cubit is an ancient unit of length based on the distance from the elbow to the tip of the middle finger. It was primarily associated with the Sumerians, Egyptians, and Israelites. The term cubit is found in the Bible regarding Noah's Ark, the Ark of the Covenant, the Tabernacle, and Solomon's Temple. The common cubit was divided into 6 palms × 4 fingers = 24 digits. Royal cubits added a palm for 7 palms × 4 fingers = 28 digits. These lengths typically ranged from 44.4 to 52.92 cm (1 ft 5+1⁄2 in to 1 ft 8+13⁄16 in), with an ancient Roman cubit being as long as 120 cm (3 ft 11 in).

Cubits of various lengths were employed in many parts of the world in antiquity, during the Middle Ages and as recently as early modern times. The term is still used in hedgelaying, the length of the forearm being frequently used to determine the interval between stakes placed within the hedge.

A rebus (/ˈriːbəs/ REE-bəss) is a puzzle device that combines the use of illustrated pictures with individual letters to depict words or phrases. For example: the word "been" might be depicted by a rebus showing an illustrated bumblebee next to a plus sign (+) and the letter "n".

It was a favourite form of heraldic expression used in the Middle Ages to denote surnames. For example, in its basic form, three salmon (fish) are used to denote the surname "Salmon". A more sophisticated example was the rebus of Bishop Walter Lyhart (d. 1472) of Norwich, consisting of a stag (or hart) lying down in a conventional representation of water. The composition alludes to the name, profession or personal characteristics of the bearer, and speaks to the beholder Non verbis, sed rebus, which Latin expression signifies "not by words but by things" (res, rei (f), a thing, object, matter; rebus being ablative plural).

Hatching (French: hachure) is an artistic technique used to create tonal or shading effects by drawing, painting, or scribing closely spaced parallel lines. When lines are placed at an angle to one another, it is called cross-hatching. Hatching is also sometimes used to encode colours in monochromatic representations of colour images, particularly in heraldry.

Hatching is especially important in essentially linear media, such as drawing and many forms of printmaking, such as engraving, etching, and woodcut. In Western art, hatching originated in the Middle Ages and developed further into cross-hatching, especially in the old master prints of the fifteenth century. Master ES and Martin Schongauer in engraving and Erhard Reuwich and Michael Wolgemut in woodcut were pioneers of both techniques. Albrecht Dürer in particular perfected the technique of crosshatching in both media.

The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived the events that caused the fall of the Western Roman Empire in the 5th century AD, it endured until the fall of Constantinople to the Ottoman Empire in 1453. The term 'Byzantine Empire' was coined only after its demise; its citizens used the term 'Roman Empire' and called themselves 'Romans'.

During the early centuries of the Roman Empire, the western provinces were Latinised, but the eastern parts kept their Hellenistic culture. Constantine I (r. 324–337) legalised Christianity and moved the capital to Constantinople. Theodosius I (r. 379–395) made Christianity the state religion and Greek gradually replaced Latin for official use. The empire adopted a defensive strategy and, throughout its remaining history, experienced recurring cycles of decline and recovery.

Japheth /ˈdʒeɪfɛθ/ (Hebrew: יֶפֶת Yép̄eṯ, in pausa יָפֶת‎ Yā́p̄eṯ; Greek: Ἰάφεθ Iápheth; Latin: Iafeth, Iapheth, Iaphethus, Iapetus; Arabic: يافث Yāfith) is one of the three sons of Noah in the Book of Genesis, in which he plays a role in the story of Noah's drunkenness and the curse of Ham, and subsequently in the Table of Nations as the ancestor of the peoples of the Aegean Sea, Anatolia, Caucasus, Greece, and elsewhere in Eurasia. In medieval and early modern European tradition he was considered to be the progenitor of the European peoples.

The Empire of Charles V, also known as the Habsburg Empire, included the Habsburg hereditary lands in central Europe, the kingdoms of Spain, the colonial Spanish Empire, the kingdom of Naples, the Habsburg Netherlands and other territories and principalities across Europe. It is sometimes considered to include, in addition, the kingdoms of Bohemia and Hungary which were held by Charles's brother Ferdinand during his reign. Charles was also Holy Roman Emperor and, as such, was suzerain of the states of the Holy Roman Empire.

The empire was the first to be labelled as "the empire on which the sun never sets", a term used to describe several global empires throughout history. The lands of the empire had in common only the monarch, Charles V, while their boundaries, institutions, and laws remained distinct. Charles's nomenclature as Holy Roman Emperor was Charles V (also Karl V and Carolus V), though earlier in his life he was known by the names of Charles of Ghent (after his birthplace in Flanders), Charles II as Duke of Burgundy, and Charles I as King of Spain (Carlos I) and Archduke of Austria (Karl I). The imperial name prevailed due to the politico-religious primacy held by the Holy Roman Empire among European monarchies since the Middle Ages, which Charles V intended to preserve as part of his (ultimately failed) project to unite Christendom under his leadership.