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They are a concise lesson in world history, reflecting wars won and lost, economic growth and decline and a country's overall standing in the world.

How fast can you vaccinate a goat? That's one of the challenges in "Female Food Heroes," a contest in Tanzania, Nigeria and Ethiopia.

Millions of children and adults are eligible for subsidized dental care in California. But the state's program is underfunded and many families can't find a dentist who participates, a report finds.

Tesla is building what it says is the world's largest battery factory. The scale is expected to drive down the cost of electric cars and batteries that homeowners can use to store surplus solar power.

Although many people thought the federal health law would reduce the need for free clinics, low-income people with high deductibles and copays still frequent the clinics for routine care.

At 21, Jac Collinsworth will be one of NBC's youngest reporters ever covering the Summer Olympics. But don't expect any father-son moments with Jac and...

Vashti Cunningham, 18, is on a roll. She set a world junior record and won the world indoor championship in March, while still in high school. She has now turned pro and has her eyes set on Rio.

What's old is new again — with the health care law requiring everyone to get some form of major medical insurance, insurance to pay for small-scale medical costs like deductibles is back.

This summer’s Republican National Convention in Cleveland has come and gone, but a big part of what helped bring it here remains; many, many hotel rooms...

When New York increased its cigarette tax, smoking rates declined. California's proposed increase of $2 a pack may, too, say researchers. The higher the tax, the more likely people are to quit.