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 1921:

"
  • August 5 – The first radio baseball game is broadcast: Harold Arlin announces the Pirates-Phillies game from Forbes Field over Westinghouse KDKA in Pittsburgh.[citation needed]