Wooden wedding, silver wedding, diamond wedding. What is the oldest marriage?
First anniversary of paper wedding, second anniversary of cotton wedding, third anniversary of leather wedding, fourth anniversary of flower wedding, fifth anniversary of wood wedding, seventh anniversary of iron wedding, eighth anniversary of wool wedding, ninth anniversary of ceramic wedding, eleventh anniversary of steel-concrete wedding, thirteenth anniversary of horse wedding, fourteenth anniversary of ivory wedding in lace wedding, twentieth anniversary of crystal wedding, 25th anniversary of silver wedding, thirty-fifth anniversary of pearl wedding, 45th anniversary of ruby wedding in coral wedding, 50th anniversary of sapphire wedding, 55th anniversary of jade wedding, 60th anniversary of Jin Gangzuan wedding, and 70th anniversary of platinum wedding.