The Düssel is a small right tributary of the River Rhine in North Rhine Westphalia. It runs westward through the Neanderthal, where the fossils of the first Neanderthal man were found in 1856. At Düsseldorf it joins the Rhine. A tributary (or affluent or confluent) is a contributory stream, a river that does not reach the sea, but joins another major river (a parent river), to which it contributes its waters, swelling its discharge. ... The Rhine canyon (Ruinaulta) in Graubünden in Switzerland Length 1,320 km Elevation of the source Vorderrhein: approx. ... With eighteen million inhabitants inhabiting 34,080 km² in western-northwestern Germany, North Rhine-Westphalia (German Nordrhein-Westfalen) is largest in population though only fourth in area among Germanys sixteen federal states. ... The Neanderthal is a small valley of the river Düssel in the German state of North Rhine-Westphalia, near the city of Mettmann. ... FOSSIL is a standard for allowing serial communication for telecommunications programs under DOS. FOSSIL stands for Fido Opus SEAdog Standard Interface Layer and was made by a group of Fidonet sysops to make their software work on different machines. ... Binomial name Homo neanderthalensis King, 1864 The Neanderthal or Neandertal was a species of genus Homo (Homo neanderthalensis) that inhabited Europe and parts of western Asia from about 230,000 to 29,000 years ago (in the Middle Palaeolithic, early Stone Age). ... 1856 was a leap year starting on Tuesday (see link for calendar). ... Düsseldorf in Germany The Düsseldorf Coat of Arms Düsseldorf is the capital city of the German federal state of North Rhine-Westphalia. ...