Arch vs Angers

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An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it. Arches may be synonymous with vaults, but a vault may be distinguished as a continuous arch forming a roof.

Arches appeared as early as the 2nd millennium BC in Mesopotamian brick architecture, and their systematic use started with the ancient Romans, who were the first to apply the technique to a wide range of structures.

Source: Wikipedia

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Angers (UK: , US: , French: [ɑ̃ʒe] (listen)) is a city in western France, about 300 km (190 mi) southwest of Paris. It is chef-lieu of the Maine-et-Loire department and was the capital of the province of Anjou until the French Revolution. The inhabitants of both the city and the province are called Angevins. Not including the metropolitan area, Angers is the third most populous commune in northwestern France after Nantes and Rennes and the 18th in France.For centuries, Angers was an important stronghold in northwestern France. It was the cradle of the Plantagenet dynasty and became one of the intellectual centers of Europe during the reign of René of Anjou. Angers developed at the confluence of three rivers, the Mayenne, the Sarthe, and the Loir, all coming from the north and flowing south to the Loire. Their confluence, just north of Angers, creates the Maine, a short but wide river that flows into the Loire several kilometres south.

The Angers metropolitan area is a major economic centre in western France, particularly active in industry, horticulture, and tourism.Angers proper covers 42.70 square kilometers (16.5 sq mi) and has a population of 152,960 inhabitants, while around 422,700 live in its metropolitan area (aire urbaine). The Angers Loire Métropole is made up of 29 communes covering 667 square kilometers (258 square miles) with 296,000 inhabitants.Angers enjoys a rich cultural life, made possible by its universities and museums. The old medieval center is still dominated by the massive château of the Plantagenêts, home of the Apocalypse Tapestry, the biggest medieval tapestry ensemble in the world. Angers is also both at the edge of the Val de Loire, a World Heritage Site, and the Loire-Anjou-Touraine regional natural park.

Source: Wikipedia