What is the name given to the extension of the Monroe Doctrine that one U. S. president used to justify intervention in Latin American affairs? Roosevelt Corollary

McKinley Doctrine

Taft Addendum

Wilson Peace Protection Plan

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Roosevelt Corollary

Explanation:

It was done by President Theodore Roosevelt

an effect of the steamboat's popularity was that people began building canals in the united states and europe. this was done to find another way to transport goods across the country and in that time, transportation using the river was very slow and dangerous. it depended entirely on manpower and the current of the river. that all changed in the late 1700's when steamboats were introduced. they soon revolutionized travel and trade through the river and dominated the waterways. eventually, other means of transportation took over from the steamboats, but there was a time that they the united states to expand to the west.

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