Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Heslington:

"

The hoard of 2,800 Roman coins, known as the Heslington Hoard was found by on 1 March 1966 during excavations in advance of the construction of 'College 3' on the campus of the University of York.[1][2]