Twin vs Darlington

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Twins are two offspring produced by the same pregnancy. Twins can be either monozygotic ('identical'), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic ('non-identical' or 'fraternal'), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell.

In contrast, a fetus that develops alone in the womb (the much more common case, in humans) is called a singleton, and the general term for one offspring of a multiple birth is a multiple. Unrelated look-alikes whose resemblance parallels that of twins are referred to as doppelgangers.

Source: Wikipedia

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Darlington is a large market town and the main administrative centre of the Borough of Darlington, in County Durham, North East England. In 2011 the town had a population of 92,363 and the district 105,564. The town lies on the River Skerne, a tributary of the River Tees. The town is administered as part of the Darlington Borough Council, a unitary authority which is administrated independently of Durham County Council.

The creation of the world's first steam locomotive powered, permanent passenger railway, the Stockton and Darlington Railway, lead to substantial development of Darlington in the 19th century. Much of the finance and vision behind the creation of the railway was provided by local Quaker families in the Georgian and Victorian eras.

Source: Wikipedia