Vaccination is still an unknown but I will do anything I can to get this disease reduced in our wildlife and livestock.

BBC: Viewpoints: The badger cull

"Runners usually fatigue late in the last six miles of the marathon, and when you are carrying weight it is more of a step into the unknown, but I am confident I will come in at under three hours and a half and beat the record, " said Mr Ellicock.

BBC: London Marathon: Ex-paratrooper runs for record

But XCOM: Enemy Unknown is certainly some of the most fun I had in 2012, and even now in 2013 I still find myself gravitating to its turn-based goodness.

FORBES: Game Of The Year Contender: 'XCOM: Enemy Unknown'

But I assumed a timely agreement on raising the debt ceiling, and have not factored in the unknown additional negative if the dangerous foolishness in Washington continues to the brink or beyond.

FORBES: Foolishly At The Brink!

But despite Lincoln's largely unknown and forgotten "Wee-man-cipation Proclamation" -- which I may have just completely made up -- a recent study appears to have proven this belief scientifically incorrect.

CNN: Apparently This Matters: Size (Yes, THAT kind of size)