| Date | Day | Commons day type | Commons praying | Lords day type | Lords praying |
|---|---|---|---|---|---|
| Saturday | 21st | Session day of unknown type | False | Session day of unknown type | False |
21st March 1857 is in the 5th session of the 16th Parliament.
21st March 1857 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.