the first christian church was built on the augusteon market square in the 4th century under emperor constantine. in the case of socrates scholastic, the construction of the first temple, called sophia, belongs to the reign of emperor constantius. according to n. p. kondakov, constantius only expanded the construction of constantine. socrates scholastic tells the exact date of the temple's blessing: after building eudoxia to the episcopal throne of the capital, the great church, known as sophia, was consecrated, what happened in the tenth consulate of constance and the third caesar julian, on the fifteenth day of the month of february.
