Correspondence between the day of the month and the day of the week - A Brief Calendar    
Table 1 Table 2
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
  1916 1944 1972 2000 2028 2056 2084   6 2 3 6 1 4 6 2 5 0 3 5 1 8 15 22 29 36 Sunday
  1917 1945 1973 2001 2029 2057 2085   1 4 4 0 2 5 0 3 6 1 4 6 2 9 16 23 30 37 Monday
  1918 1946 1974 2002 2030 2058 2086   2 5 5 1 3 6 1 4 0 2 5 0 3 10 17 24 31   Tuesday
  1919 1947 1975 2003 2031 2059 2087   3 6 6 2 4 0 2 5 1 3 6 1 4 11 18 25 32   Wednesday
  1920 1948 1976 2004 2032 2060 2088   4 0 1 4 6 2 4 0 3 5 1 3 5 12 19 26 33   Thursday 
  1921 1949 1977 2005 2033 2061 2089 2101 6 2 2 5 0 3 5 1 4 6 2 4 6 13 20 27 34   Friday
  1922 1950 1978 2006 2034 2062 2090 2102 0 3 3 6 1 4 6 2 5 0 3 5 7 14 21 28 35   Saturday 
1900 1923 1951 1979 2007 2035 2063 2091 2103 1 4 4 0 2 5 0 3 6 1 4 6
  1924 1952 1980 2008 2036 2064 2092 2104 2 5 6 2 4 0 2 5 1 3 6 1 Example:
  1925 1953 1981 2009 2037 2065 2093 2105 4 0 0 3 5 1 3 6 2 4 0 2 Which day of the week was the
  1926 1954 1982 2010 2038 2066 2094 2106 5 1 1 4 6 2 4 0 3 5 1 3 25th of March 1997? 
  1927 1955 1983 2011 2039 2067 2095 2107 6 2 2 5 0 3 5 1 4 6 2 4 The horizontal lines of frames of
  1928 1956 1984 2012 2040 2068 2096 2108 0 3 4 0 2 5 0 3 6 1 4 6 Table 1, where the number 1997 is
1901 1929 1957 1985 2013 2041 2069 2097 2109 2 5 5 1 3 6 1 4 0 2 5 0  found, have a common frame with
1902 1930 1958 1986 2014 2042 2070 2098 2110 3 6 6 2 4 0 2 5 1 3 6 1 the vertical column of March, where 
1903 1931 1959 1987 2015 2043 2071 2099 2111 4 0 0 3 5 1 3 6 2 4 0 2 number 6 is written. 
1904 1932 1960 1988 2016 2044 2072   2112 5 1 2 5 0 3 5 1 4 6 2 4 We add to 6 the number of the day
1905 1933 1961 1989 2017 2045 2073   2113 0 3 3 6 1 4 6 2 5 0 3 4 of the month, that is 25, and we find 
1906 1934 1962 1990 2018 2046 2074   2114 1 4 4 0 2 5 0 3 6 1 4 6 6+25=31.  
1907 1935 1963 1991 2019 2047 2075   2115 2 5 5 1 3 6 1 4 0 2 5 0 Following Table 2, we find that the
1908 1936 1964 1992 2020 2048 2076   2116 3 6 0 3 5 1 3 6 2 4 0 2 number 31 corresponds to the day
1909 1937 1965 1993 2021 2049 2077 2100 2117 5 1 1 4 6 2 4 0 3 5 1 3  of the week Tuesday. 
1910 1938 1966 1994 2022 2050 2078   2118 6 2 2 5 0 3 5 1 4 6 2 4
1911 1939 1967 1995 2023 2051 2079   2119 0 3 3 6 1 4 6 2 5 0 3 5
1912 1940 1968 1996 2024 2052 2080   2120 1 4 5 1 3 6 1 4 0 2 5 0 www.polkarag.gr     
1913 1941 1969 1997 2025 2053 2081   2121 3 6 6 2 4 0 2 5 1 3 6 1
1914 1942 1970 1998 2026 2054 2082   2122 4 0 0 3 5 1 3 6 2 4 0 2       
1915 1943 1971 1999 2027 2055 2083   2123 5 1 1 4 6 2 4 0 3 5 1 3
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC