This material, known as Perforated card-board at the time, first became available in the 1820s as plain sheets used for the creation of bookmarks and small mottoes and sayings, often taken from the Bible.
ðɪs mətˈɪɹiəl, nˈoʊn æz pˈɜːfɚɹˌeɪɾᵻd kˈɑːɹdbˈoːɹd æt ðə tˈaɪm, fˈɜːst bɪkˌeɪm ɐvˈeɪləbəl ɪnðə wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd twˈɛnti z æz plˈeɪn ʃˈiːts jˈuːzd fɚðə kɹiːˈeɪʃən ʌv bˈʊkmɑːɹks ænd smˈɔːl mˈɑːɾoʊz ænd sˈeɪɪŋz, ˈɔfən tˈeɪkən fɹʌmðə bˈaɪbəl.