Herodotus
The Egyptians hold solemn assemblies not once a year, but often. The principal one of these and the most enthusiastically celebrated is that in honor of Artemis at the town of Bubastis, and the next is that in honor of Isis at Busiris … and the sixth of Ares at Papremis. – 2.59.1
Apollon and Artemis were children of Dionysos and Isis, and Leto was made their nurse and preserver; in Egyptian, Apollon is Horus, Demeter Isis, Artemis Bubastis. – 2.156
Boubastis where there is also a temple of Boubastis … Boubastis is, in the Greek language, Artemis. – 2.137
Apollon and Artemis were, they say, children of Dionysos and Isis, and Leto was made their nurse and preserver; in Egyptian, Apollon is Horus, Demeter Isis, Artemis Boubastis. It was from this legend and no other that Aiskhylos son of Euphorion took a notion which is in no poet before him: that Artemis was the daughter of Demeter. – 2.156