History

The Soviets decided to produce plutonium 239, with which they wanted to replace uranium 235.

In 1998, UNESCO declared the city of Troy and its archaeological site a World Heritage Site.

The civilization of the Indus Valley was completely unknown until the end of the 19th century - the ruins of the city remained hidden from the world for about 3,700 years.

At the entrance to the pass, a monument was erected to honor the dead tourists.

The group originally consisted of nine people.

The Middle Ages were also the time of the Crusades. They were originally intended to reclaim the Holy Land from Muslim hands, although political pressures sometimes took them in surprising directions.

Mohenjo-daro did not have city walls but was fortified with watchtowers west of the main settlement and defensive fortifications to the south.

In the 14th century, Timbuktu was the richest city in the world, with a university and a rich collection of books. In the 14th century, Timbuktu had five times the population of London at that time.

In 2008, the so-called "slab avalanche" hypothesis was put forward.

The history of the city dates back to 3000 BC.