Mir Castle Complex (17th century)

The Mir Castle Complex, situated in the town of Mir, Belarus was built in the Gothic-Renaissance style.

Carbon monoxide (CO) (intermediate)

Colourless, odourless gas, highly toxic to humans and animals in high concentration.

Cities

A type of settlement that has central functions.

The battle of Actium (31 BC)

In the battle fought at the shores of Hellas, Octavian won a decisive victory over Marcus Antonius.

The Battle of the Catalaunian Plains (451)

The Roman army, led by Flavius Aetius, stopped the Hun invasion led by king Attila

Oxygen (O₂) (intermediate)

A colourless, odourless gas, an important component of the atmosphere, indispensable to sustain terrestrial life.

Slavic warriors

Slavic warriors were greatly respected throughout Europe in the Middle Ages.

The castle of Eger (16th century)

The castle of Eger got its final shape and became an important component in the new chain of border forts in the 16th century.

Market town (Kingdom of Hungary)

Market towns became the most common type of towns in the Kingdom of Hungary by the Late Middle Ages.

The reproduction and development of insects

Based on their life cycle, insects can be grouped into three categories: ametabolous, hemimetabolous or holometabolous insects.

Tower of Hanoi

The Tower of Hanoi is a mathematical puzzle.

Light and shadow

By varying the position of the light source, you can examine the shades projected onto the planes of the coordinate system.

Carbonate ion (CO₃²⁻)

A compound ion produced from carbonic acid by releasing protons.

Nitrogen (N₂) (intermediate)

A colourless, odourless, non-reactive gas, it constitutes 78.1% of Earth´s atmosphere.

Carbon dioxide (CO₂) (intermediate)

Colourless, odourless, heavier-than-air gas. Necessary for the photosynthesis of plants.

Villages

Villages were the first permanent human settlements

Burj Al Arab (Dubai, 1999)

Burj Al Arab, the world's only seven-star luxury hotel is located in the United Arab Emirates.

F-16 Fighting Falcon (USA, 1978)

The Fighting Falcon is the most successful aircraft in the category of multi-purpose fighters.

Battle of Hastings (1066)

The battle ended with the victory of William the Conqueror´s Norman army over the English.

Battle of Lepanto (1571)

The Ottoman fleet suffered a catastrophic defeat by the fleet of the Holy League.

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