| 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.
This is the final day of this session.
Given that the egg timer application records the date - but not the time - on which a session ends, it is not possible to determine whether papers laid on this date would be reported in this session or the following session.