Strait Talking

The last few days I have been trying to discover why the Bosporus Strait in Istanbul is also called the Bosphorus.  So far I haven't found out the answer, but I think it must have something to do with the Greek (European) pronunciation of the word and the Asian pronunciation of the word. I'll keep searching until I find the answer, but in the meantime I've enjoyed reading and learning about the strait. What an amazing history it has. Most likely the Sea of Marmara was a fresh water lake at some point in history and something such as a storm or earthquake or giant flood broke through the land on the Black Sea side and washed through to the Sea of Marmara. It's the 2nd busiest strait in the world with something like 150 vessels a day passing through it. It has 7 blind twists and turns which can make steering its waters treacherous and occasionally accidental. There are two bridges that cross it. It was interesting to me that divers have seen remnants of an ancient city under the water along its shores. That is amazing! The word Bosphorus is said to be a combination of the word cow and the word crossing. While to this farm girl the name might have developed because some old farmer's cows crossed the water at it's narrowest parts, history and legend have gotten involved and suggested that Zeus had an affair with Io. When his wife, Hera, found out she turned Io into a cow and threw her across the water. I'm kind of leaning towards some smart cows, who always think the grass is greener on the other side of the fence, swimming across at a couple of points along the shoreline.  This link is pretty interesting and gives a pretty good description of the strait:

http://www.turkeytravelplanner.com/go/Istanbul/Sights/Bosphorus/

My hotel will be almost exactly where the black dot on the large map is,  on the Bosphorus Strait,
which is where the red arrow is pointing.