The hand-colored photo, titled "Reclining young lady," is of Stella Osarhiere Gbinigie when she was 16. Solomon Osagie Alonge/Franko Khoury/National Museum of African Art hide caption

itoggle caption Solomon Osagie Alonge/Franko Khoury/National Museum of African Art

Tunde Wey gets ready to serve plantains and Jollof rice at his pop-up Nigerian dinner in the kitchen of Toki Underground, a ramen restaurant in Washington, D.C., in December 2014. Eliza Barclay/NPR hide caption

itoggle caption Eliza Barclay/NPR

At the health clinic in Minjibir, Nigeria, a child is immunized for polio. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

Nigerian fans stand and deliver cheers at a match against Australia, played during the Women's World Cup in Winnipeg, Canada. Russell Lewis/NPR hide caption

itoggle caption Russell Lewis/NPR

How can women in rural Nigeria get the care they need? That's what Columbia University graduate students in public health asked residents of Kadawawa, Nigeria. Courtesy of Alastair Ager and Alissa Pires hide caption

itoggle caption Courtesy of Alastair Ager and Alissa Pires

At her home in the U.K., Malala Yousafzai reads her letter to the missing Nigerian schoolgirls. Courtesy of Malala Fund hide caption

itoggle caption Courtesy of Malala Fund

Campaigners marched Monday in Nigeria's capital of Abuja during a silent protest to raise awareness about girls and boys abducted by Boko Haram. Sunday Alamba/AP hide caption

itoggle caption Sunday Alamba/AP

No one knows how many children have been affected by the spread of Boko Haram across Nigeria and neighboring countries. This photo shows the school uniforms of the girls kidnapped from a school a year ago. Glenna Gordon/Glenna Gordon for NPR hide caption

itoggle caption Glenna Gordon/Glenna Gordon for NPR

Supporters of Muhammadu Buhari celebrate ahead of their candidate's victory, in Kano, Nigeria, on Tuesday. Ben Curtis/AP hide caption

itoggle caption Ben Curtis/AP

Nigerian electoral officials collate results at a polling station in the oil rich Niger Delta, Port Harcourt, Nigeria on Sunday. Millions of voters headed to the polls in the Nigerian general elections after being delayed for over a month. Tife Owolabi/EPA/Landov hide caption

itoggle caption Tife Owolabi/EPA/Landov

Nigeria's President Goodluck Jonathan, left, and opposition candidate Gen. Muhammadu Buhari, right, prepare to sign a renewal of their pledge to hold peaceful "free, fair, and credible" elections, at a hotel in the capital Abuja, Nigeria, on Thursday. Ben Curtis/AP hide caption

itoggle caption Ben Curtis/AP

A man hammers a wall with elections posters at an open market in Kano, Nigeria, on Friday. The country is preparing for presidential elections on Saturday. President Goodluck Jonathan faces former military ruler Muhammadu Buhari and 13 other candidates in what is seen as the closest presidential race since the end of military rule in 1999. Goran Tomasevic/Reuters/Landov hide caption

itoggle caption Goran Tomasevic/Reuters/Landov