Asia
The coastal periphery was home to some of the world's earliest known civilizations, each of them developing around fertile river valleys. The civilizations in Mesopotamia, the Indus Valley and the Yellow River shared many similarities. These civilizations may well have exchanged technologies and ideas such as mathematics and the wheel. Other innovations, such as writing, seem to have been developed individually in each area. Cities, states and empires developed in these lowlands.
History of India
Neolithic agricultural cultures sprang up in the Indus Valley region around 5000 BCE, in the lower Gangetic valley around 3000 BCE, represented by the Bhirrana findings (7570–6200 BCE) in Haryana, India, Lahuradewa findings (7000 BCE) in Uttar Pradesh, India, and Mehrgarh findings (7000–5000 BCE) in Balochistan, Pakistan; and later in Southern India, spreading southwards and also northwards into Malwa around 1800 BCE. The first urban civilisation of the region began with the Indus Valley Civilisation.