A tympanum (pl. tympana; from Greek and Latin words meaning "drum") is the semi-circular or triangular decorative wall surface over an entrance, door or window, which is bounded by a lintel and an arch. It often contains pedimental sculpture or other imagery or ornaments. Many architectural styles include this element, although it is most commonly associated with Romanesque and Gothic architecture.
Alternatively, the tympanum may hold an inscription, or in modern times, a clock face.
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Pediments are a form of gable in classical architecture, usually of a triangular shape. Pediments are placed above the horizontal structure of the cornice (an elaborated lintel), or entablature if supported by columns. In ancient architecture, a wide and low triangular pediment (the side angles 12.5° to 16°) typically formed the top element of the portico of a Greek temple, a style continued in Roman temples. But large pediments were rare on other types of building before Renaissance architecture. For symmetric designs, it provides a center point and is often used to add grandness to entrances.
The cornice continues round the top of the pediment, as well as below it; the rising sides are often called the "raking cornice". The tympanum is the triangular area within the pediment, which is often decorated with a pedimental sculpture which may be freestanding or a relief sculpture. The tympanum may hold an inscription, or in modern times, a clock face.
A tradition is a system of beliefs or behaviors (folk custom) passed down within a group of people or society with symbolic meaning or special significance with origins in the past. A component of cultural expressions and folklore, common examples include holidays or impractical but socially meaningful clothes (like lawyers' wigs or military officers' spurs), but the idea has also been applied to social norms and behaviors such as greetings, etc. Traditions can persist and evolve for thousands of years— the word tradition itself derives from the Latin word tradere literally meaning to transmit, to hand over, to give for safekeeping. While it is reportedly assumed that traditions have an ancient history, many traditions have been invented on purpose, whether it be political or cultural, over short periods of time. Various academic disciplines also use the word in a variety of ways.
The phrase "according to tradition" or "by tradition" usually means that what follows is known only through oral tradition and is not supported (and might even be refuted) by solid evidence. Here, "tradition" describes the source or nature of the information. For example, "According to tradition, Homer was born on Chios, but many other places have historically claimed him as theirs." This tradition may never be proven or disproved. Another example is, "King Arthur, according to history, a true British king, has inspired many well loved stories." Whether the claims are supported by evidence or not does not reduce their value as cultural history and literature.
Laïcité ([la.i.si.te]; 'secularism') is the constitutional principle of secularism in France. Article 1 of the French Constitution is commonly interpreted as the separation of civil society and religious society. It discourages religious involvement in government affairs, especially in the determination of state policies as well as the recognition of a state religion. It also forbids government involvement in religious affairs, and especially prohibits government influence in the determination of religion, such that it includes a right to the free exercise of religion.
French secularism has a long history: Enlightenment thinkers emphasized reason and self direction. Revolutionaries in 1789 violently overthrew the Ancien Régime, which included the Catholic Church. Secularism was an important ideology during the Second Empire and Third Republic. For the last century, the French government policy has been based on the 1905 French law on the Separation of the Churches and the State, which is however not applicable in Alsace and Moselle. While the term laïcité has been used from the end of the 19th century to denote the freedom of public institutions from the influence of the Catholic Church, the concept today covers other religious movements as well.
Pedimental sculpture is a form of architectural sculpture designed for installation in the tympanum, the space enclosed by the architectural element called the pediment. Originally a feature of Ancient Greek architecture, pedimental sculpture started as a means to decorate a pediment in its simplest form: a low triangle, like a gable, above an horizontal base or entablature. However, as classical architecture developed from the basis of Ancient Greek and Roman architecture, the varieties of pedimental sculpture also developed. The sculpture can be either freestanding or relief sculpture, in which case it is attached to the back wall of the pediment. Harris in The Illustrated Dictionary of Historic Architecture defines pediment as "In classical architecture, the triangular gable end of the roof above the horizontal cornice, often filled with sculpture." Pediments can also be used to crown doors or windows.
In Romanesque architecture, and very often in Gothic architecture, the tympanum is usually semi-circular at the top, and the sculptural groups, usually with religious subjects, adapted to fit the new spaces. In the Renaissance triangular pediments returned, as gradually did sculptural groups within them, becoming very popular for important buildings in the 19th century.
A portal is an opening in a wall of a building, gate or fortification, especially a grand entrance to an important structure.
Doors, metal gates, or portcullis in the opening can be used to control entry or exit. The surface surrounding the opening may be made of simple building materials or decorated with ornamentation. The elements of a portal can include the voussoir, tympanum, an ornamented mullion or trumeau between doors, and columns with carvings of saints in the westwork of a church.
Alþingishúsið (Icelandic pronunciation: [ˈalˌθiɲcɪsˌhuːsɪθ], The Parliament House) is a classical 19th-century structure which stands by Austurvöllur in central Reykjavík, Iceland. It houses Alþingi, the Icelandic parliament. The building was designed by Ferdinand Meldahl and built using hewn Icelandic dolerite from 1880 to 1881.
The reliefs on the tympanums of the four outermost windows on the first floor represent the four landvættir of Iceland: a dragon, a vulture, a giant and a bull, momentarily appeased by Ingólfur Arnarson when he first landed in Iceland.