The religious minority group suffered harsh persecution under Islamic State (IS) group control.
Read moreYazidis
'Singing Yazidi ancient music has saved me'
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Video caption: A choir of young Yazidi women who were victims of the IS vows to keep their music alive A mother's heart-breaking choice
Copyright: BBCThe story of a Yazidi mother who was forced to give up her IS child, and went back to look for him. Read more
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Video caption: Iraq: A state of mind, Maryam's story The country has just one psychiatric hospital for a population of 38 million.
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Video caption: Nobel Peace Prize winner Nadia Murad: 'It's a huge responsibility' Nadia Murad, an Iraqi Yazidi who was tortured and raped by Islamic State militants, explains what winning the prize means to her.
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Video caption: Finally released after four years of captivity under Islamic State Her family raised thousands of dollars to get Ghazal and her children released.
By Victoria Bisset & Lyse Doucet
BBC News
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Video caption: Former Yazidi sex slave: 'I was so scared I was shaking' Ashwaq, a Yazidi teenager sold into slavery by Islamic State, was found by her former captor in Germany.
Cornish nurse uses botox profits to help refugees
Copyright: BBCAn NHS nurse from Cornwall, who offers botox injections as a side project, has set up her own charity to help refugees in Iraq.
Anne Norona uses some of the income from her private work in Truro to pay for medical supplies and aid for people living in makeshift camps.
Ms Norona was inspired to help by her extensive voluntary work in Haiti and Greece.
She says she's raised £50,000 in the last 18 months, most of it in donations from friends and associates, while a small part was through her own work.
The Yazidis, an ethnic Kurdish group in northern Iraq, were targeted by so-called Islamic State fighters in 2014.
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Video caption: Cornish nurse uses botox profits to help refugees By Lizzie Porter
Sharya, Iraq
Horror and hope
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Video caption: Horror and hope - the artists defying IS terror Horror and hope - the artists defying IS terror
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Video caption: Horror and hope - the artists defying IS terror By Yolande Knell
BBC News, Northern Iraq