The answer: 129 (give or take). They range from serious (victims of slavery day) to seemingly silly (toilet day). Do the days really make a difference?
NPR reporter Jason Beaubien talks about his trip to Ghana to report on river blindness — and how a farmer who lost his vision is still able to weed his garden.
This month, investigators learned that some peacekeepers were paying girls for sex in the Central Africa Republic. It's part of a pattern of abuse. Can the U.N. stop it?
The Centers for Disease Control is concerned about an increase in a rare birth defect in Brazil that could be linked to the virus. But Zika is not just in Brazil; see a map of where it is spreading.
He lost his sight in his youth. So he never married. But he's lived an independent life for decades — despite the best efforts of goats to raid his crops.
The World Health Organization declared West Africa officially Ebola-free on Thursday, but more cases are likely, and scientists say they have a lot of unanswered questions.