B.C. | Odd years of centuries. | A.D. | ||||||||||||||||||
Old Style. | New Style. | |||||||||||||||||||
3100 | 3000 | 2900 | 2800 | Sa | Fr | W | Mo | |||||||||||||
2700 | 2600 | 2500 | 2400 | 2300 | 2200 | 2100 | 0 | 100 | 200 | 300 | 400 | 500 | 600 | |||||||
2000 | 1900 | 1800 | 1700 | 1600 | 1500 | 1400 | 700 | 800 | 900 | 1000 | 1100 | 1200 | 1300 | 1500 | ||||||
1300 | 1200 | 1100 | 1000 | 900 | 800 | 700 | 1400 | 1500 | 1600 | 1700 | 1800 | 1900 | 2000 | 1600 | 1700 | 1800 | 1900 | |||
600 | 500 | 400 | 300 | 200 | 100 | 0 | 2000 | 2100 | 2200 | 2300 | ||||||||||
Initial Days. | Initial days. | |||||||||||||||||||
To find the initial day of any given year run the eye down the column standing under the number of the given century in the heading, and run across from the number of the given odd year. The week-day found at the junction of these lines was the initial day of the year. Having obtained this, look for that week-day in the second column from the left of the heading Table XLI.B; and in the same horizontal line, above the column which contains the day of the month will be found the week-day of that day of the month. Thus—
Wanted the week-day of March 23rd A.D. 645. Under "600" A.D. in the heading of Table XLI.A and in the same horizontal line with "45" in the middle, we find that Saturday was the initial day of the year A.D. 645. The year was a common one, and we read the months on the left side of Table XLI.B. We find March 23rd and run the eye up the column in which it appears to the week-day noted in the same horizontal line as the initial day "Sat." in column 2 of the heading. We find this day to be "W." Accordingly March 23rd A.D. 645 was a Wednesday.
In the New Style A.D. the years 1600 and 2000 are Leap-years. 1700, 1800, 1900 are common years. Each whole-century-year begins with the week-day entered at the top, but for all other years the Table is to be used as directed above, e.g., A.D. 1900 began on Monday (top), 1901 began on Tuesday, and all other years that century found by the main Table. 1928 begins on Sunday.