Cell theory has several parts. one part of cell theory determined that microorganisms, invisible to the naked eye, are responsible for causing disease. this was known as germ theory. who is credited with proving germ theory?

The germ theory began in the mid-nineteenth century where Louis Pasteur announced an idea where germs are causing infectious problems, Pasteur years later discovers that these germs can be introduced in small doses to healthy patients and create antibodies and names them Vaccines.

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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.