Yale romanization explained

The Yale romanizations are four romanization systems created at Yale University for the following four East Asian languages:

• Yale romanization of Mandarin, developed in 1943 by the Yale sinologist George Kennedy.
• Yale romanization of Cantonese, developed by Gerard P. Kok and published in 1958.
• Yale romanization of Korean, developed by Samuel Elmo Martin and his colleagues at Yale University around 1942 about half a decade after McCune–Reischauer. It is the standard romanization of the Korean language in linguistics.
• JSL romanization, a system for Japanese devised by Eleanor Jorden, which is sometimes called "Yale romanization".