Determination of the day of the week not a Gregorian leap year, (but 19 in the Julian column indicates that it "is" a Julian leap year, as are all Julian "x"00 years). 20 indicates that 2000 is a leap year. Use Jan and Feb only in leap years. For determination of the day of the week (1 January 2000, Saturday) For determination of the dominical letter (2000, BA) For determination of the doomsday (2000, Tuesday) Note that the date (and hence the day of the week) in the Revised Julian and Gregorian calendars is the same from 14 October 1923 to 28 February AD 2800 inclusive and
Week of Prayer for Christian Unity week of prayer, for example around Pentecost (as originally suggested by the Faith and Order movement in 1926, and Pope Leo XIII in 1894), which is also a symbolic date for the unity of the church. The 2008 Week of Prayer for Christian Unity was celebrated as the centennial. For the 2012 Week, the biblical text 1 Corinthians 15:51 was chosen with the theme "We will all be changed". The 2016 Week is provided by the Churches of Latvia and the theme is that all Christians are 'Called to proclaim the mighty acts of the Lord'. Week of Prayer for