1842 – Born on the 6th of January.
1862 – King graduated from the Sheffield Scientific School of Yale College with a Ph.B. in chemistry.
1872 – In October, he uncovered a diamond and gemstone hoax perpetrated by Philip Arnold.
1864 – King and Richard Cotter reported the first ascent of Mount Tyndall, at the time labeling it mistakenly as the highest peak in the Sierra Nevada.
1867 – King was named U.S. Geologist of the Geological Exploration of the Fortieth Parallel, commonly know as the Fortieth Parallel Survey, a position for which he strongly lobbied.
1879 – The US Congress consolidated the number of geological surveys exploring the American West and created the United States Geological Survey. King was chosen its first director, however he served for only twenty months.
1888 – His common law marriage to a black woman, Ada Copeland, was kept secret by his keeping a double identity. King didn’t even reveal his true name to his wife until he was on his deathbed. He was survived by four children.
1901 – King died of tuberculosis in Phoenix, Arizona, and is buried in Newport, Rhode Island. Kings Peak in Utah and Mount Clarence King in Kings Canyon National Park are named in his honor. Died on the 24th of December.