Some Russian information of interest to the list, and a question. We have Russia adopting a five-day calendar week in 1929 and a six-day week in 1932. The exact date for the adoption of the five day week was 1929-10-01 and for the six day week, 1931-12-01, not 1932. The 1940-06-27 date for the re- adoption of the seven day week is accurate; however they re-adopted their version of the Gregorian Calendar several years earlier (slightly different from ours in how it handles leap centuries; in the Gregorian, leap centuries are in those years divisible by 400; in their system, leap centuries are those in years divisible by either 200 or 600 mod 900, which makes the two calendars even until 2800- 02-28, when we have a leap year and they do not). The six day week was not always six days, but an integral part of the month; the usual days off were the 6th, 12th, 18th, 24th and 30th of the month. (Source: Evitiar Zerubavel, THE SEVEN DAY CIRCLE, a book about the history of the week.) Question: we have Greece on the Gregorian Calendar in 1846. I thought they were the last holdout, not adopting the Gregorian Calendar until 1923, which is when the Eastern Orthodox Churches got together and adopted the mod-900 version of the Gregorian Calendar described above. (The transition was made by making the day after 1923-09-30 Julian 1923-10-14 Gregorian.) Chris Carrier