all of them
20th Century BCE.
Taking just from the start of the 20th century to 2016, the 20th of October was on a Sunday in 1901, 1907, 1912, 1918, 1929, 1935, 1940, 1946, 1957, 1963, 1968, 1974, 1985, 1991, 1996, 2002 and 2013.
For non-Leap years 19th century:18101821182718381849185518661877188318941900 20th century:1906191719231934194519511962197319791990 21st century:20012007 For Leap years 19th century:1804183218601888 20th century:192819561984 21st century:2012
From the beginning of the 20th century to 2015, the 17th of October was on a Tuesday in 1905, 1911, 1916, 1922, 1933, 1939, 1944, 1950, 1961, 1967, 1972, 1978, 1989, 1995, 2000 and 2006. It will next be on a Tuesday in 2017.
Taking from the beginning of the 20th century, the 31st of October was on a Monday in 1904, 1910, 1921, 1927, 1932, 1938, 1949, 1955, 1960, 1966, 1977, 1983, 1988, 1994, 2005 and 2011. The next time will be in 2016.
Taking from the beginning of the 20th century, the 11th of October has been on a Sunday in 1903, 1908, 1914, 1925, 1931, 1936, 1942, 1953, 1959, 1964, 1970, 1981, 1987, 1992, 1998 and 2009. It will be on Sunday in 2015 and then in 2020.
Taking just the 20th and 21st century to date, the 31st of October was on a Saturday in 1903, 1908, 1914, 1925, 1931, 1936, 1942, 1953, 1959, 1964, 1970, 1981, 1987, 1992, 1998, 2009 and 2015.
Dhanteras fall 10Nov in 1985 as per Indian calendar and diwali fall on 12NOv Dhansingh Bhilala
The only substantial change was the fall of communism. That's why Fukuyama wrote about end of history.
It is not practical to go back to the beginning of time. So we can take from the start of the 20th century, through to 2015. In that case, the 12th of October was on a Friday in 1906, 1917, 1923, 1928, 1934, 1945, 1951, 1956, 1962, 1973, 1979, 1984, 1990, 2001, 2007 and 2012.
The odds of October 7 falling on a Friday are exactly 14.5%. In other words, it happens an average of 14.5 times per century. October 7 is slightly more likely to fall on a Friday than on a Monday, Tuesday, Thursday or Saturday (and equally likely to fall on a Sunday or Wednesday).
The months are September October and November and the days the 1-21 of December