Every year, more than 6 million children under the age of 5 survive who would have died had they been born in the 1990s. Those kids — especially the girls — are also being educated better than ever before.
Saving children's lives is the lowest-hanging fruit in the development world, and we're surprisingly good at it. That's not only fantastic for the children themselves and for their parents, it's also fantastic for their countries' economies.
Why it matters: These figures are worth remembering next time someone tells you that aid doesn't work and that we should all be investing in disruptive innovation and electric cars instead.