It was "<span>2. Meriwether Lewis and William Clark" who famously </span>explored the Louisiana Territory in the early 1800s--a territory purchased by Thomas Jefferson from Napoleonic France for an incredibly small amount of money.
Answer:
Young Italy formed to create a united Italian republic through by promoting a general insurrection in the Italian reactionary states also in the lands occupied by the Austrian Empire.
Vietnam War soldiers. The Vietnam War was fought between communist North Vietnam and the government of Southern Vietnam. The North was supported by communist countries such as the People's Republic of China and the Soviet Union. The South was supported by anti-communist countries, primarily the United States.
These changes impacted the way we teach and see history for years to come. In events such as the Murder of Nanking (committed by Japan), the horrors committed in the Polish termination camp (Auschwitz), and the Holocaust Twin experiment, many people were murdered and faced many cruelties. Now we study the works of Hitler, Stalin, and many others like them with caution. Though some people still believe that what Hitler did was correct (neo-nazis) or that the entire holocaust was completely made up (this is a false statement), it was a real event and had cause many people pain, and lots of people lost loved ones.