Enigma 1385: On this date
10 October 2013
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From New Scientist #2545, 1st April 2006
A very long time ago within the space of less than 100 years six members of a family were born on 1st April, all in different years. The year of birth of each of them was a perfect square. If we call them A to F in order of birth the number of years that separated the births of the following pairs was also a perfect square: A and D, A and E, B and D, B and F, C and D, C and E, C and F, E and F.
In which years in chronological order were the six born?