Modern classical music is music written in the 20th century and beyond. Although much of it draws heavily on earlier forms, modern composers also experimented with rejection of long-held ideas; notably, Arnold Schoenberg questioned the traditional notions of harmony with his twelve-tone system[?], and John Cage questioned the very definition of music with his use of chance and found sounds.
... on Hispaniola
James Cook, (1728-1779), explored the Pacific, discovering or mapping many lands and islands
Hernan Fernando Cortes, conquered the Aztec empire in Mexico; ...