The Cuba unified the issues during the Spanish American war in April 1898
Colombian exchange was as exchange of plants, animals, humans, culture, disease, technology and other things to the Africa, America and many other countries. The Colombian exchange had negative as well as positive impact on both the continents.
Impact on Europe;
This exchange benefited the old world with the introduction of new world crops such as corn and potatoes. This exchange had negative impact as well. The transmission of epidemics and African people into slavery were some of negative impacts of Colombian exchange.
Impact on America;
The technology helped in advancement in agriculture and food cultivation while the exchange of disease increased the mortality rate among the Americans.
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Answer:
The Black Hawk War was a conflict between the United States and Native Americans led by Black Hawk, a Sauk leader. The war erupted after Black Hawk and a group of Sauks, Meskwakis (Fox), and Kickapoos, known as the "British Band", crossed the Mississippi River, into the U.S. state of Illinois, from Iowa Indian Territory in April 1832. Black Hawk's motives were ambiguous, but he was apparently hoping to reclaim land sold to the United States in the disputed 1808 traety of st lous. In the 18th century, the Sauk and Meskwaki (or Fox) Native American tribes lived along the Mississippi River in what are now the U.S. states of Illinois and Iowa. The two tribes had become closely connected after having been displaced from the Great Lakes region in conflicts with New France and other Native American tribes, particularly after the so-called Fox Wars ended in the 1730s.[5] By the time of the Black Hawk War, the population of the two tribes was about 6,000 people.