  In this note, we combine the two approaches of Billingsley (1998) and
Cs\H{o}rg\H{o} and R\'ev\'esz (1980), to provide a detailed sequential and
descriptive for creating s standard Brownian motion, from a Brownian motion
whose time space is the class of non-negative dyadic numbers. By adding the
proof of Etemadi's inequality to text, it becomes self-readable and serves as
an independent source for researches and professors.
