Ugh, fine.
Cattle were first domesticated in the Fertile Crescent of the Near East with the advent of agriculture. They would later be exported to neighbouring lands.
The wild ox native to Europe (
Bos primigenius) was hunted to extinction several hundred years ago. A global study of genetic variation from cattle in India, the Near East, Europe and Africa showed that Indian cattle,
Bos indicus, showed a much higher divergence from the rest (
Bos taurus). African cattle are also quite distinct, but the variation in European breeds are similar to those of Near Eastern origin, evidence that they are imported and not bred from native stock.
Furthermore, the sequencing of the DNA from six bone fragments of the extinct native ox
Bos pimigenius found in different archaeological sites in Britain are distinct from modern cattle but similar to each other. This shows that the first farmers bred only with what they had received from the east, and not with the local wild stock. Our cattle have not been resident to Britain for 10,000 years.
QED.
This is, however, pointless.
EDIT: But less so with dates, which I forgot.
First domestication: ~10,000 years ago.
Reached Cyprus: ~ 8,200 years ago.
Balkan Peninsula: ~7,800 years ago.
Germany: ~7,400 years ago.
Belgium: ~5,400 years ago.
Bradley et al 2005