All right, I want to show you one last example of using recursion because we're going to come back to this. This is a classic example of using recursion. And that is dating from the 1200s and it is due to Fibonacci.

并且返回答案,我想给你看看递归的最后一个例子,因为我们还要再看一遍,这是一个递归的经典案例,它可以追溯到13世纪。

麻省理工公开课 - 计算机科学及编程导论课程节选

The Succession to the Crown Bill will also remove a requirement for descendants of George II to seek permission to marry from the monarch, dating back to 1772, replacing it with a requirement for the first six people in the succession to seek the sovereign's consent.

BBC: Wales

My partner may well have 40 identical pairs of black socks, accumulated from Christmasses dating back to the early 1990s.

BBC: Who wants hi-tech socks for Christmas?

Only 30 hectares were excavated, but discoveries range from worked flint dating back to back to around 7, 000 BC, to a Roman farmstead, much of which is preserved under sports pitches.

BBC: The site