Quarter Days

Quarter Days, in England and Ireland Lady Day, 25th March; Midsummer Day, 24th June; Michaelmas Day, 29th September; and Christmas Day, 25th December; while in Scotland the legal terms are Whitsunday, 15th May, and Martinmas, 11th November, though the Whitsunday term is now changed to the 28th May.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Quarles, Francis * Quarter-deck
Quadruple Alliance
Quæstors
Quaigh
Quain, Jones
Quain, Richard
Quain, Sir Richard
Quair
Quakers
Quarantine
Quarles, Francis
Quarter Days
Quarter-deck
Quarter-Sessions
Quarter-staff
Quarterly Review
Quartermaster
Quartette
Quarto
Quasimodo Sunday
Quass
Quatre-Bras