1882 – death of Ralph Waldo Emerson, American poet and philosopher. Ralph Waldo Emerson (May 25, 1803 – April 27, 1882), who went by his middle name Waldo,[3] was an American essayist, lecturer, philosopher, abolitionist, and poet who led the Transcendentalist movement of the mid-19th century. He was seen as a champion of individualism and critical thinking, as well as a prescient critic of the countervailing pressures of society and conformity. Friedrich Nietzsche thought he was "the most gifted of the Americans," and Walt Whitman called him his "master." He remains among the linchpins of the American romantic movement, and his work has greatly influenced the thinkers, writers and poets that followed him. "In all my lectures," he wrote, "I have taught one doctrine, namely, the infinitude of the private man." Emerson is also well known as a mentor and friend of Henry David Thoreau, a fellow Transcendentalist.