Document 3: Ming Marine CompassMarine compasses allowed Ming sailors tonavigate the open seas using the sun and skyas their guides. This technology, graduallydeveloped by several cultures throughout theclassical and medieval era, was also outlawedby the Ming government by the mid-15thcentury.toSource: This image from http://www.wikipedia.org is inthe public domain.1. Identify the source and type of document.2. What is the message of the document?3. Does this document corroborate (support) orcontradict the others? Why or why not?4. How might this document help you answerthe focus question?**

Mining Marine Compass was an important historical invention.

Document 3: Ming Marine Compass Marine compasses allowed Ming sailors to navigate the open seas using the sun and sky as their guides. This technology, gradually developed by several cultures throughout the classical and medieval era, was also outlawed by the Ming government by the mid-15th century. to REX e Source: This image from http://www.wikipedia.org is in the public domain. Identify the source and type of document. 2. What is the message of the document? 3. Does this document corroborate (support) or contradict the others? Why or why not? 4. How might this document help you answer the focus question?

Document 3: Ming Marine Compass Marine compasses allowed Ming sailors to navigate the open seas using the sun and sky as their guides. This technology, gradually developed by several cultures throughout the classical and medieval era, was also outlawed by the Ming government by the mid-15th century. to REX e Source: This image from http://www.wikipedia.org is in the public domain. Identify the source and type of document. 2. What is the message of the document? 3. Does this document corroborate (support) or contradict the others? Why or why not? 4. How might this document help you answer the focus question?