but between six and nine hundred years ago all these fragments were thrown away in one place - on the same beach in East Africa. They were found at the bottom of a low crumbling cliff at Kilwa ...

but between six and nine hundred years ago all these fragments were thrown away in one place - on the same beach in East Africa. They were found at the bottom of a low crumbling cliff at Kilwa ...

Kilwa Kisiwani and Songo Mnara were Swahili trading cities and their prosperity was ... Key management issues include climate change impact due to increased waveaction and beach erosion; encroachment ...