In 1915, Sidney Ells of the Federal Mines Branch experimented with separation techniques and used the product to pave 600 feet of road in Edmonton, Alberta.
ɪn nˈaɪntiːnhˈʌndɹɪd fˈɪftiːn, sˈɪdni ˈɛlz ʌvðə fˈɛdɚɹəl mˈaɪnz bɹˈæntʃ ɛkspˈɛɹɪməntᵻd wɪð sˌɛpɚɹˈeɪʃən tɛknˈiːks ænd jˈuːzd ðə pɹˈɑːdʌkt tə pˈeɪv sˈɪkshˈʌndɹɪd fˈiːt ʌv ɹˈoʊd ɪn ˈɛdmɔntən, ælbˈɜːɾə.