Perhaps there are only 3 languages that were/are important, more than a century:
Spanish (from the times of the Catholic Kings and Columbus, ca. 1492 (i.e. after the Reconquista, till the times of Louis XIV, ca. 1648)
French (from the times of Cardinal Richelieu and Louis XIV, ca. 1648 (i.e. after the Thirty Years' War, which had hardly affected France, thus free to prosper), till the end of World War I, ca. 1918)
English (mostly in its American form, since World War I and especially after World War II). So, English will be in this list in 2018.
Spanish (from the times of the Catholic Kings and Columbus, ca. 1492 (i.e. after the Reconquista, till the times of Louis XIV, ca. 1648)
French (from the times of Cardinal Richelieu and Louis XIV, ca. 1648 (i.e. after the Thirty Years' War, which had hardly affected France, thus free to prosper), till the end of World War I, ca. 1918)
English (mostly in its American form, since World War I and especially after World War II). So, English will be in this list in 2018.