Why is the leek worn? Practically, because the wearer is a Welshman who honours tradition. But the precise origin of the custom is involved in an obscurity from which emerge several curious and interesting traditions. The verses cited at the opening of this Part refer to one of these; they are quoted by Manby[115] without other credit than 'a very antient manuscript.' Another tradition is thus given in a pamphlet of 1642:[116] 'S. David when hee always went into the field in Martiall exercise he carried a Leek with him, and once being almost faint to death, he immediately remembred himself of the Leek, and by that means not only preserved his life but also became victorious: hence is the Mythologie of the Leek derived.' The practice is traced by another writer[117] to 'the custom of Cymhortha, or the neighbourly aid practised among farmers, which is of various kinds. In some districts of South Wales all the neighbours of a small farmer without means appoint a day when they all attend to plough his land, and the like; and at such a time it is a custom for each individual to bring his portion of leeks, to be used in making pottage for the whole company; and they bring nothing else but the leeks in particular for the occasion.' Some find the true origin of the custom in Druidical days, but their warrant is not clear, nor how it came to be associated with the 1st of March in that case. The military origin bears down the scale of testimony, and gives the leek the glory of a Cambrian victory as its consecrator to ornamental purposes. Whether this victory was over the Saxon or the Gaul does not exactly appear; some traditions say one, some the other. The battle of Poictiers has been named; also that of Cressy, where the Welsh archers did good service with the English against a common enemy; but an older tradition is to the effect that the Saxon was the foe. The invaders had assumed the dress of the Britons, that they might steal upon them unsuspected; but St. David ordered the Welshmen to stick leeks in their caps as a badge of distinction. This he did merely because there was a large field of leeks growing near the British camp. The precaution gave the day to the favoured of St. Dewi.