Archduke Francis Ferdinand was a royal from Austria-Hungary who went to visit the culturally conflicted and tense area of Sarajevo. Many attempts on his life were planned by a nationalist group called the Black Hand who wanted to not be a part of Austira-Hungary, but join Yugoslavia or Serbia, or have their own country. Gavril Princip was the one to one to assassinate Ferdinand and his wife after their car took a wrong turn down a street. This threw Europe into World War One because of military alliances and the nationalist moods of many ethnic groups.
Adolf Hitler was the man who took over Germany under the Third Reich with the Nazi party. He promised to rebuild Germany and help economically and politically. He started World War Two to take over the world and lead the super race (the Germans) against everyone else, except the Japanese who were military allies. Under Hitler, Jews, homosexuals, the physically and mentally impaired, and even own disabled german soldiers were kept in concentration camps and systematic killed.
Sandino was a Nicaraguan revolutionary leader who led revolts against the United States interfering in Nicaragua from the years 1927 - 1933. He was assassinated by National Guard troops under General Somoza Garcia who was supported by the United States and went on to become a dictator of Nicaragua.