By the 1960s, it was understood that the stories of the Old Testament were not literally true, but may have been ways of expressing memories about important changes in history
In the north-east of Iraq lie green, undulating plains, gradually rising to tree-covered mountain ranges with clear streams and wild flowers, with enough rainfall to grow crops
The rivers Euphrates and Tigris, which rise in the northern mountains, carry loads of silt (fine mud) that is deposited when they flood or when their water is let out onto the fields
The Warka Head is a world-famous piece of sculpture, admired for the delicate modelling, and was modelled in a hard stone that would have been imported from a distance
The ancient Mesopotamians could have traded their abundant textiles and agricultural produce for wood, copper, tin, silver, gold, shell and various stones from Turkey and Iran, or across the Gulf
The first Mesopotamian tablets, written around 3200 BCE, contained picture-like signs and numbers about goods brought into or distributed from the temples of Uruk