The Olmec civilization in Mesoamerica pre-dated the Maya and Aztec civilizations in the same region. What contribution did the Olmec people make to the Maya and Aztec civilizations?

A. The development of quipu
B. The development of the calendar
C. The development of wheat farming
D. The development of cattle ranching

muslims have taken his goods and products to different parts of asia an indonesia. sometimes just traveled and trade, but in other occasions, stayed in the place and made a living.

trade was the key for muslims economies to prosper. their commerce routes reached far places like malaysia and java in the 11th century.

another important factor for prosperity was that muslim states served as the middle point for european traders.

they used to travel by land but sailing the seas -the indian ocean- really increase the exportation of products.