It might be mikhail Gorbachev and Nikitha Khruchev because thier era has been considered humiliating and low developmental years, because During Nikita Khrucheev's term, Soviets lost thier control over many soviet satellite states like greece uprising, failure in cuban missile crises, etc.
Mikhail Gorbhachov's liberal and westernised policies led to fall and disintegretion of soviet union into many independent republics - making United states of America as sole world super power for following years.
People were forced to settle down this also led to the development of cities
The Boston massacre can be considered a milestone in america's road to independence because this event gave the british a bad reputation and angered the colonists. they brought the colonies into unity
A map of the land trade route from Europe to Asia along the Silk Road. Image credit: M’ ships brought Europeans valuable goods, traveling between the port cities of western Europe and the East from the 10th century on along routes collectively labeled the Silk Road. However, transporting goods along the Silk Road was costly, slow, and unprofitable. Muslim middlemen collected taxes as the goods changed hands. Robbers waited to ambush treasure-laden caravans.
As well as seeking a water passage to the wealthy cities of the East, sailors wanted to find a route to the exotic and wealthy Spice Islands in modern-day Indonesia, whose location was kept secret by Muslim rulers. The lure of profit pushed explorers to seek new trade routes to the Spice Islands and to eliminate Muslim middlemen.
