| Date | Day | Commons day type | Commons praying | Lords day type | Lords praying |
|---|---|---|---|---|---|
| Monday | 21st | Prorogation | False | Prorogation | False |
21st August 1871 is in the 3rd session of the 20th Parliament.
21st August 1871 is the final day of the session. Given this system records the end date, but not the time at which the session ends, it is not possible to determine whether papers laid on this date would be reported in this session or the next session.