Lateen sails, round-hulled ships, and navigation compasses had the biggest impact on a) the end of the silk roads. b) the end of the qing dynasty in china. c) the beginning of new world colonization. d) the beginning of european trade with asia.

- "the past is made of multitudinous items ranging from anything that can be collected, recollected or assessed to originate in the past. as such, the past is a gallimaufry of particulars that may not have been related in any way. however, the human mind seeks organization to understand concepts and other things. the human mind therefore seeks relationships in explaining and studying the past. history being a humanity, dictates that historians have to serve this human trait by bringing structure to details of the past. historians do this by creating interpretive frameworks that capture as many details as possible."

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missouri compromise of 1820 which prohibited slavery