Alexander's conquests spread Greek culture, also known as Hellenism, across his empire. In fact, Alexander's reign marked the beginning of a new era known as the Hellenistic Age because of the powerful influence that Greek culture had on other people.
President Lincoln was assassinated "before the Civil War was over" although it should be noted that it was very close to the end of the war. Everyone knew the North was going to win.
A serf is an agricultural laborer bound to the land of the nobility they work for (part of feudalism). It has been used throughout many civilizations up until about the 20th century.
A line graph is used to display data that changes continuously over time. A bar graph is used to compare facts.
# of animals - bar graph
track the chickens - line graph
