What happened in history when Alexander Fleming was famous?

What was the main concern of the portion of Roosevelt's audience that wanted the US to stay neutral in the conflict? Why did the is send military forces into grenada in? What were the types of military technology introduced in the civil war? What were the voting restrictions for African Americans during the civil war? How fast did airplanes go in ww1? What types of planes did the kamikaze use in World War 2? Why were people killed during the Holocaust? How was the Civil War a final triumph of the idea of a federal union over the power of the individual states? When in ww1 did they use Morse code? Who won between the battle of the Merrimack and the Monitor? The significance of the invasion of Normandy? Establado ng unang digmaang pandaigdig? How do you protect a ship? In Germany where do children leave there letters for Christkind? Where is dresden located? Did the Union army outnumber the Confederate army? What were the new weapons that were introduced in ww1? What major events took place on June 19 1928 anywhere in the world? What is the Cold War and where did it take place? To counter the communist threat in Europe the US took what action?

What happened in history when Alexander Fleming was famous?