The commercial revolution did, among others, establish connections between the merchants of different places and it established a number of banking practices which later made the trade between European nations (and not only) easier.
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A calendar displays dates and months in chronological order.
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The primary goal of many missionary groups in California was to spread their beliefs to the Natives there, as well as set up Missions, in which Europeans traded and interacted with the Natives in the area. They also helped in distributing medicine & treating sicknesses, and giving European weapons (rifles, muskets, etc).
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