Anniversaries - What they mean

Been a long time since I celebrate any anniversaries. Well what does each year stand for. Here is it.

first - paper
second - cotton
third - leather
forth - fruit and flowers
fifth - wood
sixth - sugar/iron
seventh - wool
eighth - bronze
ninth - copper/pottery
tenth - tin
eleventh - steel
twelfth - silk and linen
thirteenth - lace
fourteenth - ivory
fifteenth - crystal
twentieth - china
twenty-fifth - silver
thirtieth - pearl
thirty-fifth - coral
fortieth - ruby
forty-fifth - sapphire
fiftieth - gold
fifty-fifth - emerald
sixtieth - diamond

So, going by the above, when you are 25 years old, you are already in your silver years.