Huge leaps in learning

enabled the construction of what type of material

They were the first civilisation to

ever write down their what

They did use what

These examples are from medical

documents dated from around what

treated their sick and

how this compares to what times

They

built large cities and

traded with distant

countries such as what country

The wealthier people were what

could afford what

construction of

stone buildings like the what

They also built bathing pools

in what