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 Croats:

"

The flag of Croatia consists of a red-white-blue tricolour with the Coat of Arms of Croatia in the middle. The red-white-blue tricolor flag was chosen as those were the colours of Pan-Slavism, popular in the 19th century.[citation needed]