I’m not sure I’m phrasing this correctly. But I’m doing some research, and cannot find this information. I know the daily readings go on a 3 year cycle, and it’s possible to look up the reading for any day of the year at various sites. But what if I wanted to know what the daily reading was for a day in February 1315? Would the cycle we use today have been in effect that far back? If not, how would I find out what the readings would have been for particular days in that time?