Τρίτη Μεσοῦντος/ Τρισκαιδεκάτη/ Τρίτη ἐπὶ δέκα, XIII day
From today’s sunset: thirteenth day of Anthesterion.
III day of Anthesteria: Khytroi, ‘Pots’
“The festival used to be celebrated on the thirteenth [day] of [the month] Anthesterion, according to Philochorus.” (Philochorus FGrH 328 F84)

“In it they would boil every [kind of] seed in a pot and sacrifice it to Dionysus and to Hermes. Theopompus says that those who had been saved from the flood boiled a pot of every kind of seeds, whence the festival is thus named, and that it is customary for them in the course of the festival (sc. the Pots) to sacrifice … to Chthonic Hermes; but that no one eats from the pot. [He says] those who had been saved did this, propitiating Hermes on behalf of those who died also.”
Suda s.v. Χύτροι

“Hydrophoria: festival of the Athenians for those who died during the deluge.”
“He (Sulla) took Athens, as he says himself in his Memoirs, on the Calends of March, a day which corresponds very nearly with the first of the month Anthesterion. In this month, as it happens, the Athenians perform many rites commemorating the destruction and devastation caused by the flood, believing that the ancient deluge occurred at about this time.”
“An enclosure of Earth surnamed Olympian. Here the floor opens to the width of a cubit, and they say that along this bed flowed off the water after the deluge that occurred in the time of Deucalion, and into it they cast every year wheat meal mixed with honey.”
(Apoll. Ach. 365f4; Plut. Silla 14.6; Paus. 1. 18. 7)

'Khytrinoi agones’: contests between comic actors; 'limnomachai’ between children and youths; choral dances.
(Hesych. s.v. limnomachai; schol. 218 Frogs; Call. fr. 305 Pfeiffer; Philostr. Vit. Apoll. 4.21)

“Observing the annual commemoration for the daughter of Icarios- your day, Erigone, you who are lamented by the maidens of Attica- he will invite his friends to the banquet.” (Callim. Aet. fr. 178.1-5.)

Θύραζε Κᾶρες, οὐκ ἔτ’ Ἀνθεστήρια
“outdoors, spirits, the Anthesteria are over.” On the basis that during the Anthesteria the souls would be wandering throughout the city.“
(Suda s.v. Θύραζε; Zenob. Ath. I, 30 p. 352 Miller)

(Woman pushing girl on a swing, youth sitting on an altar, and Hermes. Terracotta lekythos, South Italian, Apulian, ca. 375–350 BCE. Now in the Metropolitan Museum…)