There are two different timeline review activities that are a great resource for the AP exam. The first timeline event provides students with a "year bank" of all the important years to know. They will use that "bank" to aid them in correctly matching the event to the year. An answer key is provided. The second timeline is a chronological activity that aids in the students' understanding of the sequence of events in United States history. Similar to the first activity, an answer key is provided for the chronology assignment.