That bridge , however , spanned the Hellespont ( Dardanelles ) , some distance away from the Bosphorus .
Was the second bridge after the above - mentioned bridge built by Emperor Darius I The Great across the Bosphorus in 513 BCE .
That bridge , however , spanned the Hellespont ( Dardanelles ) , some distance away from the Bosphorus , and was the second bridge after the above - mentioned bridge built by Emperor Darius I The Great across the Bosphorus in 513 BCE .