Apple's first computer was sold in 1976 for 666.66 dollars.
Why it is true
The Apple I was Apple's first computer, sold in 1976 for 666.66 dollars. It was hand-built by Steve Wozniak and sold without a case, keyboard or monitor. Only about 200 units were produced.
Source: Computer History Museum
Would you rather be asked first?
This is the reading side of the site, so the answer is in the sentence above — that is the whole point of it. Test yourself works the other way round: the question comes on its own, and the fact and the explanation only appear once you have answered.