An aldehyde which is an important raw material and intermediate product in industry.
The Benedictine abbey was founded by King Andrew I in 1055.
Emperor Franz Joseph I and the beautiful Elisabeth got married in Vienna in 1854, but their marriage was unfortunately an unhappy one.
This animation shows the hierarchical structure of the Medieval Christian church.
One of the main units of Matthias Corvinus´ Black Army was the infantry.
Medieval kings were typically depicted sitting on their thrones, wearing a crown and the Royal regalia.
The ruler of the vast Mongol Empire was the Khan.
Pearls, often used as gemstones, are the by-products of certain molluscs' protective mechanisms.
A game about sights around the world.
The tactics of the Hungarian light cavalry included pretending to retreat, tempting their opponents into breaking their ranks, after which the Hungarians...
One of the main units of Matthias Corvinus´ Black Army was the cavalry.
The Byzantine Emperor was the head of the Byzantine Empire, the direct continuation of the Roman Empire.
Caliphs, considered successors of the Prophet Muhammad, were the most important religious leaders of Islam.
The French monarch got his epithet because of his opulent and extravagant lifestyle.
The Emperor of the vast Far-Eastern empire was the lord of life and death.
The leader of the Ottoman Empire was the Sultan, the lord of life and death.
Ancient Persian monarchs were famous for the size of their empire and their wealth.
Influenced by Western Europe, the Tsar attempted to modernise the Russian Empire.
Viking leaders were elected from tribe members by the right of blood or an act of bravery.