The Carneian festival (cf. vi. 106. 3 n.; viii. 72.) this year it took place just before the Olympic festival, which at that time lasted four whole days, i.e. in 480 Aug. 16-19 or 17-20, ending with the full moon Aug. 19 or 20. Leonidas' march was apparently just before the Carneia, and the fighting at Thermopylae near the end of August (Busolt, ii. 673-4). (How and Wells, A Commentary on Herodotus, 1928).