dˈʊɹɹɪŋ ðə lˈeɪt nˈaɪntiːnθ sˈɛntʃɚɹi ænd ˈɜːli twˈɛntiəθ sˈɛntʃɚɹi, ðə mˈaʊntɪnəs pˈɑːɹts ʌv pˌɛnsɪlvˈeɪniə wɜː hˈoʊm tʊ ɐ bˈuːmɪŋ kˈoʊl ˈɪndʌstɹi.
During the late 19th century and early 20th century, the mountainous parts of Pennsylvania were home to a booming coal industry.