Certain materials and items have a historical association with certain anniversaries. Following are those from the US and the UK.
- ^ [w:Pears Cyclopaedia|[Pears Cyclopaedia]], 1967-68 commemorative ed., "Wedding Anniversaries." L121
- ^ The platinum wedding anniversary of Jim and Gladys Till from the Lancaster Guardian
- ^ North-west Evening Mail, Tenor and wife toast 70 years of marriage
- ^ Portsmouth News They've been around the world in 70 years
- ^ http://www.telegraph.co.uk/news/uknews/2020233/Britain%27s-longest-married-couple-celebrate-a-quiet-80th-anniversary.html
- ^ http://www.royal.gov.uk/HMTheQueen/Queenandanniversarymessages/Factsandfigures.aspx