The script dated to  1800 BCE and shows evidence of having been adapted from specific forms of Egyptian hieroglyphs that could be dated to  2000 BCE, strongly suggesting that the first alphabet had developed about that time.
ðə skɹˈɪpt dˈeɪɾᵻd tə wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd bˌiːsˌiːˈiː ænd ʃˈoʊz ˈɛvɪdəns ʌv hˌævɪŋ bˌɪn ɐdˈæptᵻd fɹʌm spəsˈɪfɪk fˈɔːɹmz ʌv ɪdʒˈɪpʃən hˈaɪɚɹəɡlˌɪfz ðæt kʊd biː dˈeɪɾᵻd tə tˈuː θˈaʊzənd bˌiːsˌiːˈiː, stɹˈɔŋli sədʒˈɛstɪŋ ðætðə fˈɜːst ˈælfəbˌɛt hæd dɪvˈɛləpt ɐbˌaʊt ðæt tˈaɪm.