Very fine, thin pottery made in China

Thread or cloth made from the fine, soft fiber produced by silkworms

one of the main masses of the earth

An instrument that makes faraway places look bigger

A person who travels to learn and discover

Plant products such as leaves, seeds, and bark that have strong flavors that are used to season food

A person whose religious beliefs come from the writings and example of Muhammad

The science of locating ships at sea

A course or way used by trading ships or a group of travelers

A certain period of time in history

A machine for printing on paper

The period of time from 1400-1500 A.D.

The old trade routes between China and the Mediterranean Sea

A person whose business is to buy and sell or exchange things