It is meant to commemorate the prophet Abraham's willingness to obey God by offering him his son.

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Late one October evening, I flew into Urfa, the city believed by Turkish Muslims to be the Ur of the Chaldeans, the birthplace of the prophet Abraham.

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We were walking on the recently created Abraham Path, Turkey's newest trekking route and the northernmost section of an ambitious vision begun in 2008 to create a long-distance trail through the Middle East based on the journey of the Prophet Abraham.

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