Timgad (called Thamugas or Tamugadi in old Berber) was a Roman colonial town in the Aurès Mountains of Algeria, founded by the Emperor Trajan around AD 100. The full name of the town was Colonia Marciana Ulpia Traiana Thamugadi. Trajan commemorated the city after his mother Marcia, father Marcus Ulpius Traianus and his eldest sister Ulpia Marciana.
Located in modern-day Algeria, about 35 km east of the town of Batna, the ruins are noteworthy for representing one of the best extant examples of the grid plan as used in Roman city planning.
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