Misc: What are described by the terms rep, challis & foulard?

Questions

In 1909 U.S. invades---------- , later overthrows President Zelaya. ?

In 1918 Latvia declares independence from---------- . ?

In 1928 Walt Disney's ---------- Mouse debuts in New York in "Steamboat Willie". ?

In 1932 "Flowers and Trees" awarded first Academy Award for a---------- . ?

In 1493 Christopher ---------- discovers Puerto Rico. ?