Immortal Calendar: 02 | Principle of memorize a calendar in 1 year

(will use it to be a principle of memorize forever)

Consideration a calendar in 2000 A.D.
(principle to memorize should be leap year, you'll understand in the next title)

We must remember 1 date in each month that,. What is direct to the day ?

Consideration a date in calendar, you'll see date of 1, 8, 15, 22, 29 (far each 7) will be direct (in the same day if it will be on Monday it must be all of them), what ever which month. So .....

If you can remember 5 number (1, 8, 15, 22, 29) try to consider the question

"Asking" What month of May 5 , 2000 will be direct on ?

From memorize 1 date of each month in 1 year (year of 2000), you'll see May 1 direct on Monday

So may 5 will be direct on Friday

"Asking" What month of August 17 will be direct on ?

August is month of 8, in calendar we memorize that August 1 direct on Tuesday.

This item must use number of principle also as 1, 8, 15, 22, 29 will be the same day. We must choose date that near to date of 17 that we're looking for will have date of 15 direct on Tuesday (cause date of 1 direct on Tuesday)

Continue to count it will be date of 16 direct on Wednesday

So August 17 will direct on Thursday

"Asking" What month of December 28 will be direct on ?

From memorize that December 1 is Friday, and from number of principle 1, 8, 15, 22, 29 will have a date of 29 is on Friday

So December 28 will be on Thursday (count back to Friday 29 , more 1 day)

Summary If we memorize date of 1 of each month in 12 months, we can able to memorize all of a year calendar and able to write a calendar easily

as want to write a calendar of June

Memory of June 1 will direct on Thursday. So as the table of memorize (memory each of 3, will be easy to memorize is Sat Tue Wed // Sat Mon Thu // Sat Tue Fri// Sun Wed Fri)