The Oxford Companion to the Year ( Bonnie J. Blackburn and Leofranc Holford-Strevens) - {CHB Books}

The Oxford Companion to the Year explores the fascinating history of calendars in general and our own in particular.
The calendar used in the West today is just one of a multitude of systems for parcelling up time and naming its divisions. Each of its days has over the centuries acquired its own peculiar significance: the feast day of a saint, the celebration of a historical event, the subject of prose or poetry, the commemoration of a significant historical figure.