The Ember weeks are the complete weeks next following Holy Cross day (September 14), St Lucy's'day (December 13), the first Sunday in Lent and Whitsun day.
Advent; the days between Septuagesima and Maundy Thursday; vigils that fall on fast days, and Ember days, except the vigil before Whitsunday (red) and the Ember days in Whitsun week (red).
James I., in his charter of incorporation, granted fairs on Monday and Tuesday in Whitsun week, and confirmed an ancient fair at Michaelmas and a market on Monday.
On his return to London in 1742 he preached to the crowds in Moorfields during the Whitsun holidays with such effect as to attract nearly all the people from the shows.
Granted a yearly fair extending from the eve of Whitsun to the Monday after Trinity and a weekly market on Wednesday, but some time before 1787 the market day was changed to Tuesday.
The Proprium de Tempore contains the office of the seasons of the Christian year (Advent to Trinity), a conception that only gradually grew up. There is here given the whole service for every Sunday and week-day, the proper antiphons, responsories, hymns, and especially the course of daily Scripture-reading, averaging about twenty verses a day, and (roughly) arranged thus: for Advent, Isaiah; Epiphany to Septuagesima, Pauline Epistles; Lent, patristic homilies (Genesis on Sundays); Passion-tide, Jeremiah; Easter to Whitsun, Acts, Catholic epistles and Apocalypse; Whitsun to August, Samuel and Kings; August to Advent, Wisdom books, Maccabees, Prophets.