<span>A. Kodak DCS 100
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The Kodak Professional Digital Camera System or DCS, later unofficially named DCS 100, was the first commercially available digital single-lens reflex (DSLR) camera.
This was caused by the bubonic plague also known as the 'black death'.Disease from flies that were on rats cause the population to wipe out.
I personally feel that most of the working citizens in America, today only work so they get payed and they have something to look forward to after they have retired from working their whole adult lives. It's nice to be treated every once in a while when you've done something great. It's even a possibility that a good hand full of people might even quit working just because they don't have something to look forward to. Maybe if they got payed more and put it away for a rainy day they might not complain, but there is always a chance.