Board Thread:General Discussion/@comment-53539-20130413201158/@comment-3467648-20130904145149

A detail, although the English Vocaloids appeared first, both languages were developed at the same time. Both companies, Zero-G and Crypton took interest in Yamaha's project and were the only ones that as other companies were offfered the chance as well, but  rejected it.

I think the English Vocaloids appeared first simply due marketing and schedule between the 3 companies