After the Meiji period Western breeds that came with civilization and enlightenment became popular, and combined with peculiarity of cats that were kept outside and naturally crossbred as well as development of mating between these cats and Japanese cats caused hybrids to increase.
明治時代以降、文明開化と共にやって来た西洋種がもてはやされ、戸外で飼われ自然に交雑するネコの特性とも相まって、これらのネコと日本猫の交配が進んだ結果、雑種が増えた。