When it happened two months ago, it shocked the world. Masked Taliban gunmen stopped a school bus filled with children in northwestern Pakistan, boarded it and shot 15-year-old Malala Yousafzai in the head and neck as she sat in the bus with her friends.
Her crime? She was a campaigner for the right of girls to go to school -- an act strictly forbidden by Taliban militants who are still active in Pakistan's Swat Valley.
This was her punishment for defying their edicts, the Taliban had said.
Fortunately, Malala survived and her story -- as well as her determination to continue to fight for girls to go to school despite the threat of death -- has captivated the world and made her into an international icon for girls' education.
Around 35 million girls across the world do not go to primary school compared to 31 million boys, says the World Bank.
The reasons are vast and varied but often stem from a combination of poverty and patriarchal customs such as child marriage in regions such South Asia and Sub-Saharan Africa, where three-quarters of the world's out-of-school girls live.