TIL that brown rats were domesticated twice. First in Japan starting around 1654 and then a second time completely independently in Europe in the early 1800s.

https://academic.oup.com/af/article/11/3/78/6306454

https://www.reddit.com/r/todayilearned/comments/15ih0fj/til_that_brown_rats_were_domesticated_twice_first/