WORLD HISTORY

Detailed explanation-1: -The invasion of Darius I (a Persian ruler of the vast Achaemenid Empire that stretched into the Indus Valley) in the early 6th century BCE marked the beginning of outside influence in Vedic society.

Detailed explanation-2: -Lesson Summary. The Indo-European Aryans migrated from Central Asia to India around 4000 years ago, transforming the weapons, religion, and language of the subcontinent. Some scholars believe they conquered an already weakened Indus Valley Civilization, using superior military technology such as the war chariot.

Detailed explanation-3: -They travelled in Indian trade ships and were brought to Indian cities by Indian traders and sailors. Not only was their coming not an invasion, even the migration was not without the consent of the people of the Sapt Sindhu. The towns and cities of Sapt Sindhu were very well-administered.

Detailed explanation-4: -One theory suggested that a nomadic, Indo-European tribe called the Aryans invaded and conquered the Indus Valley Civilization, though more recent evidence tends to contradict this claim.

Detailed explanation-5: -The Aryan Invasion Theory is a hypothesis developed in the 20th century that states that a group of people called Aryans invaded northern India and destroyed the Indus Valley Civilization.