The Greek Alphabet was the first alphabet in which vowels have independent letter forms separate from those of consonants.
ðə ɡɹˈiːk ˈælfəbˌɛt wʌzðə fˈɜːst ˈælfəbˌɛt ɪnwˌɪtʃ vˈaʊəlz hæv ˌɪndᵻpˈɛndənt lˈɛɾɚ fˈɔːɹmz sˈɛpɹət fɹʌm ðoʊz ʌv kˈɑːnsənənts.