Adam=19=A1+D4+A1+M13
and=19=A1+N14+D4
Eve in Hebrew =19
S=19 (the Snake/Serpent)

Why the convergence on #19? The ancients used both lunar and solar calendars. They observed that every 19 years, the lunar months and solar year converge, i.e. if July 4th is a full Moon, it would be 19 years before 7/4 would be a full Moon again. This is known as the http://wikipedia.org/wiki/Metonic_cycle .