Pencak Silat Indonesian island, and displays the greatest diversity of techniques. Many Javanese schools such as Perisai Diri and Inti Ombak have been established internationally in Asia, Europe and America. Merpati Putih or "white dove" style was developed in the keraton (royal courts) of 17th century Mataram and was not taught publicly until 1963. Today it is the standard unarmed martial art of the Indonesian National Armed Forces. It includes weapons but focuses more on empty-handed self-defense and the development of internal strength developed through breathing techniques. Pencak silat in Java draws from traditional kejawen and Hindu-Buddhist Javanese beliefs but after Indonesia's
Silat at least the fifteenth century in Malacca. The preset forms of silambam are known as "silatguvarisai". The most popular theory in Malaysia is that it derives from "sekilat" meaning "as (fast as) lightning." Other theories derive silat from the Sanskrit "sīla" meaning morality or principle, or the Southern Chinese "saula" which means to push or perform with the hands. The Sanskrit theory is particularly popular in Thailand, as "sila" is an alternate form of the word silat in that country. Other similar-sounding words have been proposed, but are generally not considered by etymologists. One example is "si elat" which means