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 50s:

"
  • Utrecht is founded, and a Roman fortification (castellum) is constructed at the Rhine border in the present-day Netherlands.[citation needed]
  • Claudius adopts Nero.[citation needed]
  • Roman emperor Claudius appoints Agrippa II governor of Chalcis.[citation needed]