Stalking.] [AS. staelcan, stealcian to go slowly; cf. stealc high, elevated, Dan. stalke to stalk; probably akin to 1st stalk.] 1. To walk slowly and cautiously; to walk in a stealthy, noiseless manner; -- sometimes used with a reflexive pronoun. --Shak.
In the case of hemochromatosis, it is believed that a single individual in Europe, 60 to 70 generations ago, was the sole origin of most of the hemochromatosis seen in the world today.
I'm guessing that they originated in Asia somewhere. The domestication of the horse most likely took place in central Asia prior to 3500 BC. We know lots about where horses came from because there are lots of fossil horses that show us how, and where, they evolved.