- The timeline provides a summary of New Mexico history from 12,000 BC to 1948 AD, covering periods of native settlement, Spanish colonization beginning in 1598, Mexican rule after 1821, and statehood in 1912. - Key events included the establishment of the capital Santa Fe in 1609, the Pueblo Revolt of 1680 which removed the Spanish for 12 years, and the arrival of the railroad in 1878 which opened the territory to more migration and trade. - The Manhattan Project developed the atomic bomb at Los Alamos during World War 2, with the first detonation in 1945 at the Trinity Site in southern New Mexico.