<span>The dropping of the atomic bomb on Hiroshima was justified at the time as being moral – in order to bring about a more rapid victory and prevent the deaths of more Americans. However, it was clearly not moral to use this weapon knowing that it would kill civilians and destroy the urban milieu. And it wasn’t necessary either.
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The Revolution's most important long-term economic consequence was the end of mercantilism. The British Empire had imposed various restrictions on the colonial economies including limiting trade, settlement, and manufacturing. The Revolution opened new markets and new trade relationships.
Kings ruled with absolute power which let the poor stay poor and the rich stay rich
If you are talking about the development of political parties, then the issue that led it to them was “the struggle over ratification of the federal Constitution of 1787” (loc.gov).
Federalists, such as Alexander Hamilton, wanted a strong, central government and the Anti-Federalists, like Thomas Jefferson, “advocated states’ rights instead of centralized power”. (Library of Congress)