The Ironsides were members of the Parliamentarian cavalry formed by Oliver Cromwell during the English Civil War.
Caliphs, considered successors of the Prophet Muhammad, were the most important religious leaders of Islam.
A zither is one of the typical instruments of Hungarian folk music, played by strumming or plucking the strings.
Subterranean rodents widespread in Central- and Eastern Europe.
American soldiers fought in almost all major theatres of World War II.
Colour a map with the fewest number of colours possible, so that no two adjacent regions have the same colour.
This animation demonstrates the development of freight transport, from horse-drawn carts to modern lorries.
A game about sights around the world.
This animation demonstrates the most important seas and bays.
During World War I, Britain was part of the military alliance called the ´Triple Entente´.
German sordiers in the First World War were well trained and used modern weapons.
This animation demonstrates birds' bones and eggs through the example of the common blackbird.
This animation demonstrates the states and largest cities of the USA.
The Széchényi Chain Bridge, named after István Széchenyi, was the first permanent bridge across the Danube between Pest and Buda.
The theorem formulated by Leonhard Euler describes one of the basic properties of convex polyhedra.
An exercise about the generation of solids of revolution.
This animation demonstrates various types of cones and pyramids.
Drums are played by hitting the membrane. There are many versions of drums.
Small farms usually located near the border of rural towns, inhabited by peasants.
This animation demonstrates the angle of inclination of lines and planes in various positions.