PHILIPPINE English is one of the earliest varieties to ever be investigated. The late Prof. Braj Kachru's first article on Indian English titled 'The Indianness of Indian English' was published in 1965. The first publication on Philippine English is the 1969 book of the late Prof. Teodoro Llamzon titled 'Standard Filipino English.' Professor Kachru's article is not referenced in Professor Llamzon's book, so it seems that Llamzon had not read Kachru's article when Llamzon wrote his.

Though Llamzon's book received criticisms from his colleagues, his idea of the emergence of a localized variety of English in the Philippines attracted attention, and therefore interested other linguists to either prove or disprove the existence of the said local variety. No one now questions the existence of Philippine English, and this is evidenced by the excellent tradition of research on this variety of English.