1972
You were born in the year 1991 if you are 31 years old.
July 31 2010 was a Saturday.
July 31, 1919
July 31, 1962.
July 31st, 2010 would be - 7/31/2010 or VII/XXXI/MMX
19 as of today, March 31, 2010; you will be 20 on July 5, 2010.
31 July 2010 The last date for filing Income Tax Returns for 2010-11, assessment year 2011-12 is 31 July 2011.
Calculated in 2010 the year of birth was 1979.
There are 31 days in July every year. It doesn't matter if it is a leap year there will still be 31 days.
Given the current year of 2010, if you have already celebrated your birthday this year, you would have been born in 2010 - 31 = 1979. If you had not yet celebrated your birthday you would have been born in 1978.
This is 2010, right now. If you've already had your birthday this year, then you are 31 if you were born in 1979. If you have not yet had your birthday this year, and you were born in 1978, then you would be 31.
July 31st, 2010 fell on a Saturday.