Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: The Romans may have marched across Britain and left many impressive monuments, but few of their footprints remain. Now, a Roman tile bearing a clear imprint of a naked foot has been discovered close to Hadrian’s Wall. It’s the first human footprint to have been found at the fortified settlement of Vindolanda and is thought to have been made 2,000 years ago. The size of the partial print of a right foot indicates it was made by a teenager between 160 and 180 AD, either by accident or as an act of mischief. Although it has not been confirmed that the teenager was a soldier, men were able to join the military between the ages of 16 to 50.Roman tile was discovered at Vindoland, a Roman fort near Hadian's WallSize of the bare footprint indicates it was made by a teenagerIt's the only tile found there to have a human print, despite thousands having been found near a tilery at the ancient site 
 Question:‘It brings full circle the story that _ has to tell.

Vindolanda