They're from two different time periods, and yet they make it work! Things haven't changed much for married or partnered couples since the days of cave dwellers, apparently, according to the pithy, prehistoric, perfectly amusing Happy Anniversary card on sale here. Your clock conscious or unconscious husband, wife, boyfriend, girlfriend, or those joyfully joined couples you know, will be laughing with timeless, boundless, unconstrained delight when you gift them the comically hilarious Anniversary greeting. Right on time - for memorable marital milestone good cheer and best wishes!