List three ways early explorers navigate before the invention of maps?

Stars, compass, and the position of the sun. They also used astrolabes so if you learned about those in class, use that in the list rather than the sun

The league of nations was found in 1919 to keep peace after world war l.but it failed to prevent world war ll in 1939,so in 1945 the nations of the world set up a new organization,the united state (un).since then, the un has encouraged international cooperation and worked to resolve conflict