oceania making far world 's single widely used writing system number letters latin alphabet varied first derived etruscan alphabet contained letters later ''g'' added represent previously spelled ''c'' ''z'' ceased included alphabet language voiced alveolar fricative ref name ref letters ''y'' ''z'' later added represent greek letters upsilon zeta respectively greek loanwords ref name ''w'' created th century ''vv'' represented
Applied science Divinity Scriptural study and languages Latin