<P> The origins of the current gift conventions date to 1937 . Before that, only the 1st, 5th, 10th, 15th, 20th, 25th, 50th, and 75th anniversaries had an associated gift . In 1937, the American National Retail Jeweler Association (now known as Jewelers of America as a result of an organizational merger) introduced an expanded list of gifts . The revamped list gave a gift for each year up to the 25th, and then for every fifth anniversary after that . </P> <P> Lists of wedding anniversary gifts vary by country . The traditional and modern U.S. versions were compiled by librarians at the Chicago Public Library . </P> <Table> <Tr> <Th> Year </Th> <Th> Traditional (U.S.) </Th> <Th> Traditional (U.K.) </Th> <Th> Modern list created by Chicago Public Library </Th> </Tr> <Tr> <Td> 1st </Td> <Td> Paper </Td> <Td> Paper </Td> <Td> Clock </Td> </Tr> <Tr> <Td> 2nd </Td> <Td> Cotton </Td> <Td> Cotton </Td> <Td> China </Td> </Tr> <Tr> <Td> 3rd </Td> <Td_colspan="2"> Leather </Td> <Td> Crystal, glass </Td> </Tr> <Tr> <Td> 4th </Td> <Td> Linen, silk </Td> <Td> Fruit and flowers </Td> <Td> Appliances (electrical) </Td> </Tr> <Tr> <Td> 5th </Td> <Td_colspan="2"> Wood </Td> <Td> Silverware </Td> </Tr> <Tr> <Td> 6th </Td> <Td> Iron </Td> <Td> Sugar </Td> <Td> Wood objects </Td> </Tr> <Tr> <Td> 7th </Td> <Td> Wool, copper </Td> <Td> Woollen </Td> <Td> Desk sets / Pen and Pencil sets </Td> </Tr> <Tr> <Td> 8th </Td> <Td> Bronze </Td> <Td> Salt </Td> <Td> Linens, lace </Td> </Tr> <Tr> <Td> 9th </Td> <Td> Pottery </Td> <Td> Copper </Td> <Td> Leather goods </Td> </Tr> <Tr> <Td> 10th </Td> <Td> Tin, aluminium </Td> <Td> Tin </Td> <Td> Diamond jewelry </Td> </Tr> <Tr> <Td> 11th </Td> <Td> Steel </Td> <Td> </Td> <Td> Fashion jewelry, accessories </Td> </Tr> <Tr> <Td> 12th </Td> <Td> Silk </Td> <Td> Silk and fine linen </Td> <Td> Pearls, colored gems </Td> </Tr> <Tr> <Td> 13th </Td> <Td> Lace </Td> <Td> </Td> <Td> Textiles, furs </Td> </Tr> <Tr> <Td> 14th </Td> <Td> Ivory </Td> <Td> </Td> <Td> Gold jewelry </Td> </Tr> <Tr> <Td> 15th </Td> <Td_colspan="2"> Crystal </Td> <Td> Watches </Td> </Tr> <Tr> <Td> 16th </Td> <Td> </Td> <Td> </Td> <Td> Silver holloware </Td> </Tr> <Tr> <Td> 17th </Td> <Td> </Td> <Td> </Td> <Td> Furniture </Td> </Tr> <Tr> <Td> 18th </Td> <Td> </Td> <Td> </Td> <Td> Porcelain </Td> </Tr> <Tr> <Td> 19th </Td> <Td> </Td> <Td> </Td> <Td> Bronze </Td> </Tr> <Tr> <Td> 20th </Td> <Td_colspan="2"> China </Td> <Td> Platinum </Td> </Tr> <Tr> <Td> 21st </Td> <Td> </Td> <Td> </Td> <Td> Brass, Nickel </Td> </Tr> <Tr> <Td> 22nd </Td> <Td> </Td> <Td> </Td> <Td> Copper </Td> </Tr> <Tr> <Td> 23rd </Td> <Td> </Td> <Td> </Td> <Td> Silver plate </Td> </Tr> <Tr> <Td> 24th </Td> <Td> Opal </Td> <Td> </Td> <Td> Musical instruments </Td> </Tr> <Tr> <Td> 25th </Td> <Td_colspan="3"> Silver </Td> </Tr> <Tr> <Td> 30th </Td> <Td_colspan="2"> Pearl </Td> <Td> Diamond </Td> </Tr> <Tr> <Td> 35th </Td> <Td> Coral, jade </Td> <Td> Coral </Td> <Td> Jade </Td> </Tr> <Tr> <Td> 40th </Td> <Td_colspan="3"> Ruby </Td> </Tr> <Tr> <Td> 45th </Td> <Td_colspan="3"> Sapphire </Td> </Tr> <Tr> <Td> 50th </Td> <Td_colspan="3"> Gold </Td> </Tr> <Tr> <Td> 55th </Td> <Td_colspan="3"> Emerald </Td> </Tr> <Tr> <Td> 60th </Td> <Td> Diamond (yellow) </Td> <Td_colspan="2"> Diamond </Td> </Tr> <Tr> <Td> 65th </Td> <Td> </Td> <Td> Blue sapphire </Td> <Td> </Td> </Tr> <Tr> <Td> 70th </Td> <Td> </Td> <Td> Platinum </Td> <Td> </Td> </Tr> <Tr> <Td> 75th </Td> <Td_colspan="3"> Diamond, gold </Td> </Tr> <Tr> <Td> 80th </Td> <Td> </Td> <Td> Oak </Td> <Td> Diamond, pearl </Td> </Tr> <Tr> <Td> 85th </Td> <Td> Moonstone </Td> <Td> Wine </Td> <Td> Wife's birthstone </Td> </Tr> <Tr> <Td> 90th </Td> <Td> </Td> <Td> Stone </Td> <Td> Engraved marble, granite </Td> </Tr> </Table> <Tr> <Th> Year </Th> <Th> Traditional (U.S.) </Th> <Th> Traditional (U.K.) </Th> <Th> Modern list created by Chicago Public Library </Th> </Tr>

What is the appropriate gift for a 20th anniversary
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