Clarification on the calendar - it happened during the 28 year cycle I referenced, but the cycle itself of the DOW pattern for each year repeats itself every 28 years (7 start days for the year X 4 positions in the leap year cycle), not counting any 28 year period containing 100,200,300, 500,600,700, 900,1000, 1100, 1300,1400,1500, 1700,1800,1900, 2100,2200,2300, etc. (Leap year occurs every four years, unless the year is divisible by 100 but not by 400).