History has changed the world because certain events played out in such ways that people saw the need to change it. My guiding question was: How did Alexander the Great's battle tactics change the world? Alexander changed the known world by unifying it for a brief period. I learned that many of Alexander's tactics were created by his father, while Alexander put them into action.
There were many cool projects. One thing I learned is that Roman Maniples had the poor soldiers in front so they would die and the rich soldiers in the back to become richer. I also learned that people will only present to teachers and parents. There were pretty cool projects that looked great.