September 6th 1818 was on a Sunday, you can verify this at http://www.timeanddate.com/calendar/?year=1818&country=1
September 6th 1987 was a Sunday.
If she die on August 31 1997 then she died on a Sunday.
The first weekend for September 2013 is from Friday the 6th to Sunday the 8th.
It was a Sunday.
It depends on what year is in question. For 2009, September starts on Sunday.
Sunday 23rd of September 2007 to Saturday 29th of September 2007.
September 6 is not a year - it is one day out of the year. And September 6 is not the date which gets added during a leap year.
6th September 1968
Ganesha Chaturthi in the year 1986 was on Sunday, 7th September
September 15th, 1963 fell on a Sunday. The following year, it fell on a Tuesday.
September 7th, 1889 fell on a Saturday. The following year it fell on a Sunday.