Final answer:
The question asks about the historical context in which Nicaragua was compelled by the United States to allow American bankers control over various aspects of its economy and infrastructure, which can be linked to the broader American policy of 'Dollar Diplomacy' under President Taft.
Step-by-step explanation:
The question addresses a historical event concerning Nicaragua's relations with American bankers and the United States' influence in Central America during the early 20th century. Nicaragua, along with other Central American countries, came under heavy influence of the United States and American corporations, particularly those involved in sectors like fruit production and banking. During the presidency of William Howard Taft, a policy known as 'Dollar Diplomacy' was enacted to further American interests in the region. The question specifically refers to a historical situation where Nicaragua promised to give American bankers control over certain parts of its infrastructure and economy.
Based on historical records, Nicaragua did not explicitly 'promise' to give control but was compelled under pressure from the U.S. government and its military. Under President Taft, the U.S. aimed to replace European debt in Central America with American loans, essentially transferring financial control to the U.S. When Nicaragua resisted American loans to pay off its British debts, the U.S. sent warships and marines to exert pressure on the Nicaraguan government. Although the 'three things' are not listed in a single clear historical moment, the overarching control sought by American interests broadly encompassed areas such as debt repayment arrangements (imposed financial control), land and transportation routes of strategic importance (control over strategic lands), and influence over internal politics, exemplified by military interventions and support for favorable political factions.