Читать книгу Byzantine Constantinople, the walls of the city and adjoining historical sites онлайн

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The erection and repair of the fortifications of a city was an undertaking which all citizens were required to assist, in one form or another. On that point the laws were very stringent, and no rank or privilege exempted any one from the obligation to promote the work.^[163] One-third of the annual land-tax of the city could be drawn upon to defray the outlay, all expenses above that amount being met by requisitions laid upon the inhabitants. The work of construction was entrusted to the Factions, as several inscriptions on the walls testify. In 447, when the Theodosian fortifications were repaired and extended, the Blues and the Greens furnished, between them, sixteen thousand labourers for the undertaking.^[164]

The stone employed upon the fortifications is tertiary limestone, brought from the neighbourhood of Makrikeui, where the hollows and mounds formed in quarrying are still visible. The bricks used are from 1 foot 1 inch to 1 foot 2 inches square, and 2 inches thick. They are sometimes stamped with the name of their manufacturer or donor, and occasionally bear the name of the contemporary emperor, and the indiction in which they were made. Mortar, mixed with powdered brick, was employed in large quantities, lest it should dry without taking hold,^[165] and bound the masonry into a solid mass, hard as rock.