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Forget the contradictory polls and the pundit spin. Look to history as a more reliable guide to what will happen on Election Day.

It's been 35 years since the storming of the U.S. Embassy in Tehran triggered a 444-day hostage crisis. Today saw more cries of "Down with America," plus some interesting demands from the crowd.

No, really. Some serious scientists collaborated with Facebook in 2010 and found that the app added 340,000 additional voters that election cycle.

If one urban legend is to be believed, there are as many rats as people — 8 million. Statistician Jonathan Auerbach decided to test that idea.

China's popular messaging app, WeChat, has some 300 million users and has become a way for Chinese to rally around a cause, something that's difficult in a country with strict government controls.

Farmers will haul in a record-breaking harvest of soybeans and corn this year, but they could be victims of their own success: Prices for these crops, falling for months, are at five-year lows.

With the help of online data, doctors and public health officials are tracking the spread of illnesses and predicting where they might strike next. The analyses also provide clues for prevention.

Massachusetts law now says that if you throw out more than a ton of food waste a month, it can't go to a landfill. But many institutions had already begun composting waste or turning it into energy.

The city's public schools have lurched from one crisis to the next. The latest: canceling the contract with the teachers' union. Just about everyone worries that there's no long-term fix in sight.

The U.S. is now the world's largest oil producer, and some worry that falling prices could mean an industry slowdown. But with production costs also falling, drillers are unlikely to cut back soon.