It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.
Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of 'de Finibus Bonorum et Malorum' (The Extremes of Good and Evil) by Cicero
The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters.
It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.
There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form.