Ruby jubilee

A ruby jubilee marks a 40th anniversary.

Ruby jubilees in recent history

Monarch	Year of Jubilee
King Frederick William III of Prussia	1837
Emperor Pedro II of Brazil	1881
Franz Joseph I Emperor of Austria & King of Hungary	1888
King Norodom of Cambodia	1901
King Carol I of Romania	10 May 1906
King Alfonso XIII of Spain	1926[1]
King Gustaf V of Sweden	1947
King Bhumibol Adulyadej (Rama IX) of Thailand	1986[2]
Prince Rainier III of Monaco	1989
Queen Elizabeth II of the United Kingdom and the other Commonwealth Realms	6 February 1992[3]
King Hussein of Jordan	1992
Sultan Haji Hassanal Bolkiah of Brunei	5 October 2007
Queen Margrethe II of Denmark	14 January 2012[4][5]
King Carl XVI Gustaf of Sweden	15 September 2013[6]

See also

• Silver jubilee
• Diamond jubilee
• Golden jubilee
• Platinum jubilee
• Sapphire jubilee
• Wedding anniversary
• Hierarchy of precious substances

References

2. พระเจ้าอยู่หัวในพระบรมโกศ กษัตริย์พระองค์เดียวในโลกที่ได้รับการเฉลิมฉลอง Platinum Jubilee
3. Queen marks Ruby Jubilee
4. Queen Margrethe celebrates 40 years on Danish throne
5. "Queen Margrethe II of Denmark marks 40 years on the throne". BBC News. Denmark. 12 January 2012.
6. http://www.kungahuset.se/royalcourt/mediacentre/pressreleases/pressreleases/theking40yearsasswedensheadofstate.5.4ea495e313c19c119aaa185.html