31 Points
Joined May 2007
yeah.. even i was wondering ... why diamond at 60 .. then i did a bit googling and came across thing article @ wikipedia
Anniversaries and celebrations
Jubilee is a historical term for a time of celebration or rejoicing. It is defined in Leviticus 25:9 as "Yovel" in Hebrew, as the sabbatical year after seven cycles of seven years.
* Jubilee (Christian), a special year for the remission of sins
* Silver Jubilee (25 years)
* Golden Jubilee (50 years)
* Diamond Jubilee (60 years in Britain, 75 years in the United States, 100 years in South Asia)
* Platinum Jubilee (70 years in Britain, 75 years in South Asia)
* Sed festival, a ritual celebration or Jubilee of an Egyptian king's reign
* The Buckley Jubilee is a yearly festival on the second Tuesday of July in Buckley that has taken place for over 200 years
Source : https://en.wikipedia.org/wiki/Jubilee
Suraj