The phrase "twelfth century" refers to a specific time period that occurred from the years 1101 to 1200 AD. It is the time when society, culture, and historical events took place during that century. Full definition
The followers were distinguished for their tolerance which they inherited from their founder, who in the sixth century (twelfth century AD.) (religion-online.org)
Simpson knows well that the Reynard stories were «runaway best sellers since the late twelfth century,» but what he really wants to stress is the lesson we are to learn from them, which is the same as what we are to learn from the much - later Machiavelli, he of the sunken countenance and the jaundiced eyes. (firstthings.com)
A Story As Sturdy As The Pillars Of The Earth Twelfth century England was an unhappy time for most. (heypoorplayer.com)