What were the criteria for an Athenian citizen undertaking a trierarchy? It was not so much a question of his ability to captain a vessel or his seamanship, as virtually exclusively of his 'economic surface'. To make a generalization, a well-to-do inhabitant could undertake a trierarchy more than once, whether voluntarily or obligatorily. A person desirous of avoiding his obligation could invoke the procedure of antidosis, and claim that some other person richer than him ought to take his place. If a trierarch had incurred debts, these were paid by his heirs after his death or were transferred into their name. People refusing to undertake this obligation risked going to jail.

Should a trierarch die during his period of service, his heir normally stood in for him for the remainder of the year. He thus became a member of the trierarchic class, and could continue to belong to it in his own right by taking on other trierarchies. But if the trierarch had left outstanding ship debts behind him at his death, his heirs had to pay them - it made no difference whether they were all possessors of the estate or had shared it between them.

The basic requirement for joining the trierarchic class was to have visible property. However, there were some rentiers who, owing to the large income needed for a trierarchy, had recourse to concealing part of their estates, their objective aim being to dodge the trierarchy. This tactic made it difficult for the Athenian state to pick out well-to-do citizens as candidates to take on 'liturgies'.


In the second half of the fourth century, it cost a sum of 5,000 drachmae to make good a ship's hull. Fitting out a trireme needed an outlay of a sum of 2,200 drachmae. If we add these two sums together, it represented the awesome sum of 7,200 drachmae. It is certain that fitting-out expenses had about doubled by the end of the fourth century. Consequently a complete trireme now cost 9,100 drachmae, while a quadrireme came to 11,100 drachmae.

A trierach might display inordinate zeal in building his vessel and maintaining it. In that case, he got not only his crown of ivy, but notability and self-respect. Undertaking trierarchies and carrying them out with success was both a personal vindication of his abilities and proof of his economic clout. His polis had need of his estate, and he placed it selflessly at her disposal.
The trierarchic and more generally the 'liturgic' eisphora was an essential to Athens. In the fourth century it was equal, we know, to over half the total state revenues.


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