November 5 - anniversary of the discovery of the Gunpowder Plot

Gregorian calendar, New Style calendar - the solar calendar now in general use, introduced by Gregory XIII in 1582 to correct an error in the Julian calendar by suppressing 10 days, making Oct 5 be called Oct 15, and providing that only centenary years divisible by 400 should be leap years; it was adopted by Great Britain and the American colonies in 1752

11 November, Martinmas, St Martin's Day - the feast of Saint Martin; a quarter day in Scotland

All Saints' Day, Allhallows, Hallowmas, Hallowmass, November 1 - a Christian feast day honoring all the saints; first observed in 835

All Souls' Day, November 2 - a day of supplication for all the souls in purgatory

Armistice Day, November 11, Veterans' Day - a legal holiday in the United States; formerly Armistice Day but called Veterans' Day since 1954

Thanksgiving, Thanksgiving Day - fourth Thursday in November in the United States; second Monday in October in Canada; commemorates a feast held in 1621 by the Pilgrims and the Wampanoag

Gregorian calendar month - a month in the Gregorian calendar

mid-November - the middle part of November

autumn, fall - the season when the leaves fall from the trees; "in the fall of 1973"