While civilisations rose in the Middle East and Europe, two of the greatest ancient cultures were developing in Asia: in the Indian subcontinent and in China. Their inventions and ideas would eventually reach the whole world.
The Indus Valley
Around 2600 BC, one of the world's first great civilisations grew along the Indus River in what is now Pakistan and north-west India. Cities such as Mohenjo-daro and Harappa were carefully planned, with:
- straight streets laid out in a grid,
- brick houses and public wells,
- advanced covered drains and sewers — remarkable for the time.
They traded widely and had a form of writing that historians have not yet been able to read.
The great empires of India
Later, powerful empires united much of India. The Mauryan Empire's most famous ruler, Ashoka, is remembered for turning away from war and promoting peace and tolerance after a terrible battle. Centuries later, the Gupta period is often called a 'golden age' of Indian science, art and mathematics, when scholars developed the idea of zero and the numerals that became our modern digits.
Han China and its inventions
In China, the Han dynasty (from 206 BC) ruled a vast and well-organised empire. Chinese inventors produced ideas of astonishing importance:
- Paper, which changed how knowledge was recorded and shared.
- The magnetic compass, later vital for exploration.
- Advances in silk-making, ironworking and medicine.
The Silk Road
These civilisations were connected by the Silk Road, a network of trade routes linking China, India, Persia and the Mediterranean. Along it travelled not only silk, spices and paper, but also ideas, religions and inventions — showing that the ancient world was far more connected than we might imagine.
Put these events in order, earliest first:
- The Indus Valley civilisation builds planned cities such as Mohenjo-daro (about 2600 BC)
- The Mauryan Empire unites much of India under Ashoka
- The Han dynasty begins in China (206 BC)
- India's Gupta period becomes a 'golden age' of science and mathematics
- The Silk Road links China, India, Persia and the Mediterranean