Anno Domini

The term anno Domini is Medieval Latin, which means in the year of the Lord but is often translated as in the year of our Lord. It is occasionally set out more fully as anno Domini nostri Iesu (or Jesu) Christi ("in the year of Our Lord Jesus Christ"). The terms anno Domini (AD or A.D.) and before Christ (BC or B.C.) are used to label or number years in the Julian and Gregorian calendars.

This calendar era is based on the traditionally reckoned year of the conception or birth of Jesus of Nazareth, with AD counting years from the start of this epoch, and BC denoting years before the start of the era. There is no year zero in this scheme, so the year AD 1 immediately follows the year 1 BC. This dating system was devised in 525, but was not widely used until after 800.

The Gregorian calendar is the most widely used calendar in the world today. For decades, it has been the unofficial global standard, adopted in the pragmatic interests of international communication, transportation, and commercial integration, and recognized by international institutions such as the United Nations.

Elvas

Elvas (Portuguese pronunciation: [ˈɛɫvɐʃ]) is a Portuguese municipality, an episcopal city and frontier fortress of Portugal, located in the district of Portalegre in Alentejo. It is situated about 230 kilometres (140 mi) east of Lisbon, and about 15 kilometres (9.3 mi) west of the Spanish fortress of Badajoz, by the Madrid-Badajoz-Lisbon railway. The municipality population as of 2011 was 23,078, in an area of 631.29 square kilometres (243.74 sq mi). The city itself had a population of 15,155 as of 2001.

Elvas is among the finest examples of intensive usage of the trace italienne (star fort) in military architecture, and has been a World Heritage Site since 30 June 2012. The inscribed site name is Garrison Border Town of Elvas and its Fortifications.

History

Elvas lies on a hill 8 kilometres (5.0 mi) northwest of the Guadiana river. It is defended by seven bastions and the two forts of Santa Luzia and Nossa Senhora da Graça. Its late Gothic cathedral, which has also many traces of Moorish influence in its architecture, dates from the reign of Manuel I of Portugal (1495–1521). A 6 kilometres (3.7 mi) long aqueduct supplies the city with pure water; it was begun early in the 15th century and completed in 1622. For some distance it includes four tiers of superimposed arches, with a total height of 40 metres (130 ft). The surrounding lowlands are very fertile, and Elvas is known for its olives and plums, the last-named being exported, either fresh or dried, in large quantities. Brandy is distilled and pottery manufactured in the city. The fortress of Campo Maior, 15 kilometres (9.3 mi) to the northeast, is known for its Napoleonic era siege by the French and relief by the British under Marshal Beresford in 1811, an exploit commemorated in a ballad by Sir Walter Scott.

Computer-aided design

Computer-aided design (CAD) is the use of computer systems to aid in the creation, modification, analysis, or optimization of a design. CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing. CAD output is often in the form of electronic files for print, machining, or other manufacturing operations.

Computer-aided design is used in many fields. Its use in designing electronic systems is known as electronic design automation, or EDA. In mechanical design it is known as mechanical design automation (MDA) or computer-aided design (CAD), which includes the process of creating a technical drawing with the use of computer software.

CAD software for mechanical design uses either vector-based graphics to depict the objects of traditional drafting, or may also produce raster graphics showing the overall appearance of designed objects. However, it involves more than just shapes. As in the manual drafting of technical and engineering drawings, the output of CAD must convey information, such as materials, processes, dimensions, and tolerances, according to application-specific conventions.

Portalegre Football Association

The Portalegre Football Association (Associação de Futebol de Portalegre, abrv. AF Portalegre) is the district governing body for the all football competitions in the Portuguese district of Portalegre. It is also the regulator of the clubs registered in the district.

Notable clubs in the Portalegre FA

Current divisions - 2011–12 season

The AF Portalegre runs the following division covering the fifth tier of the Portuguese football league system.

1ª divisão