It seems exactly like Britannica.
The problem with Britannica is that they used one or two scholars and had them representing huge chunks of space. Definitely not really expertise.
Compare:
Oxford's AeschylusQUOTE
Aeschylus (also spelled Aischylos or Aiskhylos) was born c. 525/4 bce to an aristocratic family in Eleusis, a town in western Attica, part of the territory controlled by Athens. He was one of the earliest tragic poets. He first entered a tragic competition c. 499 (dramatic competitions were introduced in the 530s bce ) and won first prize for the first time in 484. In the 470s he visited Sicily, where he was the guest of Hieron of Syracuse
Wiki's AeschylusQUOTE
There are no reliable sources for the life of Aeschylus. He was said to have been born in c. 525 BC in Eleusis, a small town about 27 kilometers northwest of Athens, which is nestled in the fertile valleys of western Attica,[3] though the date is most likely based on counting back forty years from his first victory in the Great Dionysia. His family was both wealthy and well established; his father Euphorion was a member of the Eupatridae, the ancient nobility of Attica.[4] As a youth, he worked at a vineyard until, according to the 2nd-century AD geographer Pausanias, the god Dionysus visited him in his sleep and commanded him to turn his attention to the nascent art of tragedy.[4] As soon as he woke from the dream, the young Aeschylus began writing a tragedy, and his first performance took place in 499 BC, when he was only 26 years old;[3][4] He would eventually win his first victory at the City Dionysia in 484 BC.
I can't see the full thing, but the inline citation model of Wikipedia is far superior to the "general knowledge thrown down by an 'expert' without any real ability to distinguish the sources of information".
By the way, the literaryencyclopedia already has the same vetting process.