The document provides an overview of US imperialism and expansionism between 1890-1914. It discusses key figures like Matthew Perry who opened Japan to Western influence, Anglo-Saxonism which believed English nations were destined to dominate, and the Spanish-American War sparked by yellow journalism. The US acquired colonies like Hawaii and asserted influence through the Platt Amendment. It also summarizes the US pursuing open door policies, building a navy to project power, and intervening in Latin America under the Roosevelt Corollary.