ðə fˈɜːst wɜːɹ ɪnðə nˈaɪntiːnhˈʌndɹɪd sˈɛvənti z, ænd dɪdnˌɑːt ɹᵻmˈeɪn ˌɑːpɚɹˈeɪʃənəl fɔːɹ lˈɔŋ, wɪððə lˈæst fˈɑːɹm klˈoʊzɪŋ ɪn nˈaɪntiːnhˈʌndɹɪd ˈeɪɾi tˈuː.
The first were in the 1970s, and did not remain operational for long, with the last farm closing in 1982.