There is a Zoroastrian tradition that a true believer should wear a girdle made of 72 threads of fine wool.
The true companions of Imam Husain when He was martyred was 72.
There is a tradition that says that the sign for the end of the age will see a war between 72 Muslim sects.
72 companions accompanied Baha'u'llah during His exiles to Istanbul and then to Akka.
There is a tradition that Moses had 12 apostles and 72 disciples.
72 was an important numerological number for the Sumerians, to them it was the number that represented the highest expression of the human in this world. The human is represented by the number 5, you may recall da Vinci's drawing of a man, legs, arms, head = 5, the zodiac equals 360 degrees, man upon the zodiac is 5 into 360 = 72.
Love's a stranger to earth and heaven too; In him are lunacies seventy-and-two. Rumi
