How did the ideology of Manifest Destiny contribute to the Mexican War of 1846? Why did the Mexican War of 1846 take place? Was the war necessary? Was it beneficial to the United States? What does this war tell us about this period of American history?

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on

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