Early Christianity is commonly known as the Christianity of the roughly three centuries (1st, 2nd, 3rd, early 4th) between the Crucifixion of Jesus (c.26-36) and the First Council of Nicaea in 325. Since the 19th century, historians have learned much more about the early Christian community. Early texts such as the Didache (in second-millennium copies) and the Gospel of Thomas (in two manuscripts dated as early as about 200 and 340) have been rediscovered in the last 200 years.