<span>In-group classification is the classification that best fits the individuals on your "friend" list on facebook. </span>Ingroup is term used in <span>sociology and social psychology.</span> <span> It denotes a social group to which a person psychologically identifies as being a member.</span> The friend list on facebook is example of ingroup on the social media.
The Lewis and Clark Expedition began in 1804, when President Thomas Jefferson tasked Meriwether Lewis with exploring lands west of the Mississippi River that comprised the Louisiana Purchase. Lewis chose William Clark as his co-leader for the mission.
A good example of a secondary source document useful in the study of history would be a textbook, because it provides basic information even though it wasn't an actual document from the historical time period.
Answer: During Reconstruction, many small white farmers, thrown into poverty by the war, entered into cotton production, a major change from prewar days when they concentrated on growing food for their own families.
