Timbuktu, Great Zimbabwe and Mbanza Kongo are all examples of?

In what way did expansion and global trade during the 15th to 18th centuries affect the economies of european countries

Which of these innovations led to increased production in american factories in the early 1800s? a. the use of interchangeable parts b. the construction of canals c. the invention of the mechanical reaper d. the availability of electricity

6. how are goods and services distributed in a free market system?