Context: The National Archives Building in downtown Washington holds record collections such as all existing federal census records, ships' passenger lists, military unit records from the American Revolution to the Philippine–American War, records of the Confederate government, the Freedmen's Bureau records, and pension and land records.

Question: Where is the National Archives Building located?
Answer: downtown Washington

Question: What proportion of the federal census records in existence does the National Archives Building house?
Answer: all

Question: What's the latest war The National Archives Building has military unit records for?
Answer: Philippine–American War

Question: What's the earliest war The National Archives Building has military unit records for
Answer: American Revolution

Question: Where is the Freedmen's Bureau located?
Answer: Unanswerable

Question: What is the Freedmen's Bureau responsible for?
Answer: Unanswerable

Question: What  are two examples of record collections at the Freedmen's Bureau?
Answer: Unanswerable

Question: What is the earliest war the Freedmen's Bureau has records for?
Answer: Unanswerable

Question: What foreign war records are kept at the Freedmen's Bureau?
Answer: Unanswerable