If the movie is perhaps a documentary, then it is telling you factual information of actual events (includes pictures or pictures of actual documents or events); this makes it a primary source.
If the movie is based off of real events, has factual information, but also has added information to create a well-rounded plot, this makes it a secondary source.
Germany hoped to achieve a quick victory in the First World War by invading France first, since they thought France was ill-prepared for invasion. However the complex alliance system led to a prolonged war.
The population declined. Many Eastern Europeans were murdered. Among them Slavs, Jews, Gypsies, etc.
One thing they adopted is the Mayan calendar
I believe it is 4 because when you look up civic participation it says when a civilian participates in the government
