The revolt of the animals against Farmer Jones is Orwell's analogy with the October 1917 Bolshevik Revolution.
ðə ɹᵻvˈoʊlt ʌvðɪ ˈænɪməlz ɐɡˈɛnst fˈɑːɹmɚ dʒˈoʊnz ɪz ˈɔːɹwɛlz ɐnˈælədʒi wɪððɪ ɑːktˈoʊbɚ nˈaɪntiːnhˈʌndɹɪd sˈɛvəntˌiːn bˈɑːlʃɪvˌɪk ɹˌɛvəlˈuːʃən.