The answer is "<span>halo effect".
The halo effect is a sort of quick judgment disparity, or subjective inclination, where a man influencing an underlying evaluation of someone else, to place, or thing will accept uncertain data in light of solid data.
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The Columbian Exchange has brought new species to Europe. This includes new plant species, such as tomatoes and potatoes which have help combat hunger in Europe. This can be seen for example through the fact that when potato has a blight it caused the great famine in Ireland. However, the Columbian Exchange was not only positive for Europe as it also introduced sicknesses such as syphilis.
Here is the answer to number 1: The Egyptians created a 360 day calendar, and sundials to keep track of time.
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