Wikipedia:Reference desk/Archives/Humanities/2023 June 1

= June 1 =

Official Maps for Qinghai and Gansu
Are there any up-to-date official maps published by the Chinese government (PRC) of Chinese provinces particularly Qinghai and Gansu available online? StellarHalo (talk) 01:34, 1 June 2023 (UTC)

Japanese rokuyō (6-day cycle)
Who invented the Japanese rokuyō (六曜) system, and how was it decided which day is when? Why does the sequence get disrupted at the beginning of a new lunar month?

Today, June 1, 2023, is "butsumetsu" (仏滅). How was it decided that this particular day is "butsumetsu"? And what is a "butsumetsu" day supposed to be good for? Staying in bed all day? 2601:18A:C500:E830:5810:7A20:571F:3C3 (talk) 07:05, 1 June 2023 (UTC)


 * Have you looked at Japanese calendar? It doesn't answer all your questions, but it says how they are calculated. ColinFine (talk) 10:01, 1 June 2023 (UTC)


 * Yes, I know how they are calculated. Add the "kyuureki" (old lunar calendar) month to the "kyuureki" day of the month, then take the remainder modulo six. When this remainder is five, you get a "butsumetsu" day. But, why are they calculated this way? Why add the month to the day of the month? Why not subtract, or ignore the month altogether? Why modulo six, rather than modulo some other number? Why is "butsumetsu" associated with a remainder of five, rather than some other remainder? — Preceding unsigned comment added by 2601:18A:C500:E830:858E:5CCE:81A4:1D07 (talk) 00:32, 2 June 2023 (UTC)


 * For the origin and use of the system see . Other websites say the reset is back to Sensho at the end of the lunar month, for example . The website has a calculator from 1900-2100 at but the lunar dates are not listed. To settle the matter I overlaid the 6-day week against the lunar calendar of the Eastern Orthodox Church. The columns are respectively (1) Month number (2) Name (3) Number of days (4) Gregorian date of first day (5) Day in 6-day week:


 * Leap month occurs before the start of years 3, 6, 8, 11, 14, 17 and 19 of the metonic cycle

As an aside, Orthodox Easter falls (until 2099) between the 19th and 25th day of Miri, so on 16 April this year. 92.21.195.15 (talk) 18:08, 2 June 2023 (UTC)

It appears that the original idea was to divide each 30-day month into five six-day weeks. This pattern is disrupted at the end of a 29-day month. It can be restored by skipping a day, thus introducing the system of recalibrating the sequence at the beginning of each month. The following features are either incidental or planned:


 * The year begins with Shenso (the first day of the 6-day week) on the first day of the first month.
 * There is a smooth transition from the last day of the twelfth month to the first day of the first month of the following year as it is identical to the transition from the last day of the sixth month to the first day of the seventh.
 * Buddha's birthday on the fifteenth day of the second month is butsumetsu. Other Buddhist calendars seem to be based on the sidereal zodiac which does not allow for Precession of the Equinoxes. Thus the corresponding date in Burma, the fifteenth day of the second Hindu month Vaisakha, is a public holiday (3 May in 2023).
 * Moon Viewing Day on the fifteenth day of the eighth month is butsumetsu.

To incorporate these features not using this system would be difficult or impossible. The calculator shows that it takes intercalation in its stride. Although there is a readjustment on 20 February 2023 (month 2, day 1) and 20 April 2023 (month 3, day 1 according to the modulo) there is none in March. It looks as if the intercalary month necessary to keep the new moon within its related zodiacal sign (of which about seven are needed every 19 years) has been added. It is of note that at this time the new moon is positioned very near to the cusp of the relevant zodiacal sign (Aquarius/Pisces, Pisces/Aries, Aries/Taurus). I believe that the Chinese calendar does not duplicate either the twelfth or the first month in this way. 92.21.195.15 (talk) 13:10, 3 June 2023 (UTC)


 * Who are the people listed in the Name column? --  Jack of Oz   [pleasantries]  18:07, 3 June 2023 (UTC)
 * Anyone? --  Jack of Oz   [pleasantries]  20:05, 5 June 2023 (UTC)
 * Well they're not me, I know that much. —Tamfang (talk) 16:10, 6 June 2023 (UTC)

Castle
Can you help me to find the name of the castle in the background? Thank you. — Preceding unsigned comment added by 193.207.220.97 (talk) 16:31, 1 June 2023 (UTC)
 * It's barely discernible. I don't think you will be able to get an answer based on such a poor picture. And, as discussed when you raised similar questions in the past, it's most likely an entirely fictional design. Xuxl (talk) 18:12, 1 June 2023 (UTC)
 * I agree, it's most likely a fictional design, but it does bear a resemblance to Neuschwanstein Castle which is often used as a basis/inspiration for such designs and has featured in multiple films. WaggersTALK  13:47, 2 June 2023 (UTC)
 * It doesn't seen that castle. Can you search better for the last time? Thank you. — Preceding unsigned comment added by 193.207.201.255 (talk) 21:35, 2 June 2023 (UTC)
 * The image you linked is clearly not an official promotional image for the next chapter of the manga. Also, the castle looks nothing like the manor associated with the character on the image. The castle is most likely the Yokosuka Castle in the third annual non-canon movie especially since it burned due to arson in the last act. Of course, the characters even made a lampshade remark about how it resembles the Neuschwanstein Castle. StellarHalo (talk) 06:47, 3 June 2023 (UTC)