The early Quakers considered the use of pagan gods' names-derived days of the week and months of the year to be idolatrous and didn't use them. You still find u

The early Quakers considered the use of pagan gods' names-derived days of the week and months of the year to be idolatrous and didn't use them. You still find use of phrases such as 'first day school' and 'on the 21st of the fourth month' sometimes. And my marriage registry entry is dated '17 vii 2010', the traditional Quaker date format. Which at least has the advantage (like ISO format) of being unambiguous!