Pausanias, Description of Greece 5.14.8

Pausanias guides us round the altars at Olympia.

τὰ δὲ ἐς τὸν μέγαν βωμὸν ὀλίγῳ μέν τι ἡμῖν πρότερόν ἐστιν εἰρημένα, καλεῖται δὲ Ὀλυμπίου Διός. πρὸς αὐτῷ δέ ἐστιν Ἀγνώστων Θεῶν βωμὸς καὶ μετὰ τοῦτον Καθαρσίου Διὸς καὶ Νίκης καὶ αὖθις Διὸς ἐπωνυμίαν Χθονίου. εἰσὶ δὲ καὶ θεῶν πάντων βωμοὶ καὶ Ἥρας ἐπίκλησιν Ὀλυμπίας, πεποιημένος τέφρας καὶ οὗτος· Κλυμένου δέ φασιν αὐτὸν ἀνάθημα εἶναι. μετὰ δὲ τοῦτον Ἀπόλλωνος καὶ Ἑρμοῦ βωμός ἐστιν ἐν κοινῷ, διότι Ἑρμῆν λύρας, Ἀπόλλωνα δὲ εὑρέτην εἶναι κιθάρας Ἑλλήνων ἐστὶν ἐς αὐτοὺς λόγος.

A little earlier I spoke on the subject of the great altar, which is called the altar of Olympian Zeus. Next to it is an altar of Unknown Gods, and after this an altar of Zeus the Purifier, an altar of Victory, and another altar of Zeus with the surname ‘Of The Earth’. And there are altars of all gods, and of Hera with the surname Olympian, which is also [i.e. like that of Olympian Zeus] made of ashes. They say that it was dedicated by Clymenus. After this is the altar of Apollo and Hermes, which they share because the Greeks’ story about them is that Hermes was the inventor of the lyre and Apollo the inventor of the kithara.

Pausanias, Description of Greece 1.21.1

From Pausanias’ guidebook to Greece.

εἰσὶ δὲ Ἀθηναίοις εἰκόνες ἐν τῷ θεάτρῳ καὶ τραγῳδίας καὶ κωμῳδίας ποιητῶν, αἱ πολλαὶ τῶν ἀφανεστέρων· ὅτι μὴ γὰρ Μένανδρος, οὐδεὶς ἦν ποιητὴς κωμῳδίας τῶν ἐς δόξαν ἡκόντων. τραγῳδίας δὲ κεῖνται τῶν φανερῶν Εὐριπίδης καὶ Σοφοκλῆς. λέγεται δὲ Σοφοκλέους τελευτήσαντος ἐσβαλεῖν ἐς τὴν Ἀττικὴν Λακεδαιμονίους, καὶ σφῶν τὸν ἡγούμενον ἰδεῖν ἐπιστάντα οἱ Διόνυσον κελεύειν τιμαῖς, ὅσαι καθεστήκασιν ἐπὶ τοῖς τεθνεῶσι, τὴν Σειρῆνα τὴν νέαν τιμᾶν· καί οἱ τὸ ὄναρ <ἐς> Σοφοκλέα καὶ τὴν Σοφοκλέους ποίησιν ἐφαίνετο ἔχειν, εἰώθασι δὲ καὶ νῦν ἔτι ποιημάτων καὶ λόγων τὸ ἐπαγωγὸν Σειρῆνι εἰκάζειν.

In the theatre the Athenians have statues of both tragic and comic poets, mostly of the less famous ones. For apart from Menander, there is not one comic poet from those who have won fame. But of those famous for tragedy there are Euripides and Sophocles. A story is told that after Sophocles’ death the Lacedamonians invaded Attica and their commander saw Dionysus standing over him and telling him  to honour the new Siren with honours such as were appointed for the dead. He thought that the dream was about Sophocles and the poetry of Sophocles, and even today people are accustomed to liken to a Siren whatever is attractive in poems and in words.