what is the origin of the phrase at sixes and sevens
At sixes and sevens An ancient dispute between the Merchant Taylors and Skinners livery companies is the probable origin of the phrase.[1] The two trade associations, both founded in the same year (1327[2]), argued over sixth place in the order of precedence. In 1484, after more than a century and a half of bickering, the Lord Mayor of London Sir Robert Billesden ruled that at the feast of Corpus Christi, the companies would swap between sixth and seventh place and feast in each other's halls. Nowadays, they alternate in precedence on an annual basis.[1][2]
Japanese superstitions 7, when pronounced with "shichi", sounds similar to the number four (四 shi). It is considered a good number since 7 symbolizes "Togetherness". 8 is considered a lucky number because it is nearly homophonous to the word "Prosperity" (繁栄 han'ei), It is also homophonous to Hachikō. 9 is considered a good number, when it was pronounced Kyū, sounds like a word for Relief. 10 is considered a good number because it is pronounced Jū, sounds like the word for "Enough" and "Replete". It is also a homophone for the word "Ample" (十分な jūbun'na).