Ancestor Peng's Hundred Prohibitions 彭祖百忌- Chinese electional astrology

I will now translate a short text of Chinese electional astrology, the Pengzu Bai ji = 彭祖百忌, "Ancestor Peng's hundred prohibitions" This is possibly the simplest text of Chinese Electional astrology there is, but AFAIK has never been translated into English. This blogpost is a republication of a twitter thread I did in about 2020. Ancestor Peng's Hundred Prohibitions shows the inauspicious activities for each of the ten heavenly stems and twelve earthly branches. To use a western analogy, it is no more complex than using the day of the week to find auspicious days to do something. The present version was derived from the Baidu text https://baike.baidu.com/item/%E5%BD%AD%E7%A5%96%E7%99%BE%E5%BF%8C, which agrees with most printed sources. I have however referred to two other compendia of electional astrology, the Aspects of Auspiciousness almanac 象吉通書, and the Ao's head almanac 鰲頭通書 for alternate entries.

As a matter of background, The Chinese measure time using two cycles, one of ten terms which represents the 5 “Chinese elements” in their Yin and Yang forms), called the Heavenly stems, and one of 12 terms, which is the familiar chinese zodiac animals.The 2 cycles run concurrently, so the end result is the combinations of heavenly stems and earthly branches repeat every 60 terms.
Now, years, months, days and two-hour periods of each day are all assigned such terms. For the purposes of this text we are looking at the terms associated with the day. If you know the stem and branch associated with each day, The text shows what you should not do for on that day- hence its name
For example, the day I first posted this text on twitter-- 20 march 2020 was the day of the Yang Water Dog 壬戌, the 59th term of the cycle. as today has the Heavenly stem of Yang Water, I should not attempt to brew. As today has the earthly branch of the Dog, I should also not attempt to eat dogs.Similarly, As the next day was the day of the Yin Water Pig 癸亥, I should also not attempt to sue anyone, or get married. Furthermore As the sexagenary cycle is also used to number hours, some sources say that the prohibitions apply to the hours of the day as well.