Arch vs Erode

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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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Erode ([iːɾoːɽɯ]) is a city in the Indian state of Tamil Nadu. The seventh largest urban agglomeration in the state, after Chennai, Coimbatore, Madurai, Tiruchirapalli, Salem and Tirunelveli. It is also the administrative headquarters of the Erode district. Administered by a municipal corporation since 2009, Erode is a part of the Erode Lok Sabha constituency that elects its member of parliament.

Located on the banks of River Kaveri, it is situated centrally on South Indian Peninsula, about 400 kilometres (249 mi) southwest of its state capital Chennai and about 80 kilometres (50 mi) east of Coimbatore and about 50 kilometres (31 mi) east of Tiruppur. Erode is an agricultural, textile and a BPO hub and among the largest producers of turmeric, hand-loom and knitwear, and food products.

Source: Wikipedia