The outcome of one of the greatest battles in the history of the ancient East (fought by the Egyptians and Hittites) was indecisive.
Large construction sites provide archaeologists searching for artefacts with a great deal of work.
During the evolution of vertebrates the relative development of brain areas has changed.
A type of sugar found in mammalian milk.
The American Civil War was fought between the Confederacy and the Union.
Venus is the 2nd planet from the Sun, the brightest object on the night sky (after the Moon).
Trolleybuses and trams are environment-friendly means of public transport
Pearls, often used as gemstones, are the by-products of certain molluscs' protective mechanisms.
A group of fish characterised by a cartilaginous skeleton, well-known species include the great white shark and the great hammerhead shark.
The German engineer Otto Lilienthal was the first person to make successful flights with a glider designed by himself.
Colourless, odourless liquid produced by dissolving carbon dioxide in water.
The changing bicycle, at first mocked as a toy, is a true mirror of the technical development over the last three centuries.
Building 3D shapes into a given cube mesh with the help of several views.
Edison´s invention records and plays sound from a cylinder, while Berliner´s apparatus uses a disc.
Long-necked herbivorous dinosaur with a robust body.
Ziggurats were typical terraced step pyramids used as temples in ancient Mesopotamia.
The limbic system plays an important role in forming emotions and in learning.
Because of the military conflict in Sudan, millions of people had to flee their homes.
The Gaul city Alesia, defended by Vercingetorix, was besieged by the Roman forces of Julius Caesar in 52 BC.
The phalanx formation was a military formation of the Greek heavy infantry.