The borders of the Roman Empire, which fluctuated throughout the empire's history, were realised as a combination of military roads and linked forts, natural frontiers (most notably the Rhine and Danube rivers) and man-made fortifications which separated the lands of the empire from the countries beyond.

Today the river carries its name from its source confluence in Donaueschingen, Germany, to its discharge into the Black Sea via the Danube Delta in Romania and Ukraine. The river was known to the ancient Greeks as the Istros (Ἴστρος) [9] from a root possibly also encountered in the ancient name of the Dniester (Danaster in Latin, Tiras in …

The Danubian Limes (German: Donaulimes), or Danube Limes, refers to the Roman military frontier or limes which lies along the River Danube in the present-day German state of Bavaria, in Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria and Romania.

2023年12月2日 · It is also known as the waterway of ancient Rome. The Danube begins in Germany and flows southeast for about 1,770 miles to Hungary and Romania, and passes through Bulgaria, Serbia, Croatia, and Austria to reach the Black Sea.

Danube (Greek ῎Ιστρος and Δάνυβις; Latin Danubius or Danuvius): one of the largest rivers in Europe, northern frontier of the Roman Empire. Springing from two wells in the Black Forest and emptying itself into the Black Sea, the Danube has a length of about 2860 kilometers.

2012年6月12日 · In antiquity the river often froze during severe winters, making crossings very easy during those periods. From the end of the Gorge, at the Roman castellum Diana, to the mouth of the Timok river, the Danube again becomes a broad and smooth flowing stream with numerous islands and sandbars.

2010年3月8日 · The subject is the Roman occupation and control of the river Danube between the river Inn and the Black Sea, with a special emphasis on recent research and discoveries.

The Danube River was a navigable road for the Empire, with ports along its banks serving an entire fleet. The Empire possessed a huge and powerful infantry as well as the only fleet in the ancient world.

Originating near the Black Forest in Germany, the Danube presently flows southeast for 2850 km and passes through 10 countries which is more than any other river in the world: Slovakia, Austria, Hungary, Serbia, Germany, Croatia, Romania, Bulgaria, Moldova and Ukraine, draining into the Black Sea.

The Danube was the Frontier with the Germanic Tribes during the Roman Empire. Bulgaria where the Danube Delta drains into the Black Sea was conquered by the Romans in 75 BCE.