TIL that roast beef is so synonymous with England and its cooking methods from the 18th century that a French nickname for the English is "les Rosbifs".

http://news.bbc.co.uk/2/hi/uk_news/2913151.stm

https://www.reddit.com/r/todayilearned/comments/1515hyj/til_that_roast_beef_is_so_synonymous_with_england/