The item that anthropologists study to learn about in the past is bones i do believe.
Answer:
allows for timely delivery and optimized distribution
The African empires remained largely as traditionalists and agriculturists. They stayed in their territories working hard to achieve progress. The Swahili city-states were traders and craftsmen. Their culture had been influenced by Middle-Easters and Indian territories. They were able to make dealings with overseas territories which helped them increase their economy.
When the government spends money or makes a payment, it is called a GOVERNMENT EXPENDITURE. This includes all the governments consumption, transfer payments as well as investments. Hope this answer helps.