During the construction of Borobudur, Charlemagne ruled in Europe, and the rulers of Byzantium fought with the Arabs in the east, with the Bulgarians in the north. During the construction of Angkor Wat, King Louis VI began the unification of France, in England Henry I issued the first charter of liberties, and in Germany the struggle for investiture between popes and emperors ended. Vladimir Monomakh ruled in Kiev. During the construction of the city of Angkor Thom, Genghis Khan founded his empire in Mongolia. Queen Tamara ruled in Georgia and the poet Shota Rustaveli worked; Prince Vsevolod III the Big Nest ruled in Vladimir, and Pope Innocent IIL ruled in Rome. In England, John Landless was forced to approve the Magna Carta.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.