First time I here that phrase! A testament to the rise of China? The proper term is continental Europe.
Digging a bit further, Wikipedia's[0] article is titled "Continental Europe", but says "mainland" is also used.
Time to speculate: for the British speaking English, the "main" land are the British Isles, so they prefer the term "continental".
[0] https://en.wikipedia.org/wiki/Continental_Europe
First time I here that phrase! A testament to the rise of China? The proper term is continental Europe.
Digging a bit further, Wikipedia's[0] article is titled "Continental Europe", but says "mainland" is also used.
Time to speculate: for the British speaking English, the "main" land are the British Isles, so they prefer the term "continental".
[0] https://en.wikipedia.org/wiki/Continental_Europe