Old Wafer-Thin Wooden Tablet With Heartfelt Birthday Party Invitation Discovered, Earliest RSVP Evidence Archaeologists knew ...

From the big stuff, like working out your budget and venue, to the niggly details, like where Auntie Gladys and Uncle Tim ...

This wafer-thin wooden tablet from a first-century Roman fort in the U.K. includes a heartfelt birthday party invitation.