American Imperialism: The Spanish-American War. One of the earliest examples is US intervention in Cuba's struggle for independence from Spain, which led to the Spanish-American War in 1898. Encouraged by sensationalist American journalism about the Cuban conflict and the mysterious sinking of the US Navy battleship.
Demographics is statistical data of a population. This can include how many people of each gender in a certain population, the occupations of the people, and basically anything that is statistical data.