haʊˈɛvɚ, ðə kˈæɾɐklˌɪzəm sˈɛt ˌʌp ɐn ᵻvˈɛnt hɚɹˈaɪzən ɪn tˈaɪm ðæt pɹɪvˈɛntᵻd ˈɛnɪwˌʌn fɹʌm ˈɛntɚɹɪŋ ɡˈælɪfɹiz ɹˈɛlətˌɪv pˈæst ɔːɹ tɹˈævəlɪŋ fɹʌm ɪt tə ðə pɹˈɛzənt ɔːɹ fjˈuːtʃɚ.
However, the cataclysm set up an event horizon in time that prevented anyone from entering Gallifrey's relative past or travelling from it to the present or future.