The Grand Canal was a technology and public project under Yangdi that helped unite China, but it should be noted that there were other things as well.
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Well industrial revolution was a period of time where humans started using machines instead of hand making stuff, so mankind use to develop machinery tools.
Mound Builder is the general name or the collective name given to the pre-Columbian Native American cultures who constructed earthen structures for religous, burial and/ or ceremonial purposes. The Mound Builder are famous in building flat earthworks, flat mounds and other forms
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The New England colonies, middle colonies, and the southern colonies each developed distinct economic characteristics. The New England colonies developed an economy based on shipbuilding, fishing, lumbering, small-scale subsistence farming, and eventually manufacturing. The New England colonies prospered.
Explanation: