Template:Did you know nominations/SM U-21 (Germany)

The following is an archived discussion of the DYK nomination of the article below. Please do not modify this page. Subsequent comments should be made on the appropriate discussion page (such as this nomination's talk page, the article's talk page or Wikipedia talk:Did you know), unless there is consensus to re-open the discussion at this page. No further edits should be made to this page.

The result was: promoted by Hawkeye7 (talk) 21:20, 27 August 2014 (UTC)

SM U-21 (Germany)

(

)

... that the British scout cruiser HMS Pathfinder was sunk (pictured) by the German U-boat SM U-21?

ALT1:... that the sinking of the British scout cruiser HMS Pathfinder (pictured) by the German U-boat SM U-21 in 1914 was the first time a warship was sunk by a modern submarine?
ALT2:... that the German U-boat SM U-21 sank two British battleships, the HMS Majestic and HMS Triumph, in a span of three days?
Reviewed: Not a self-nomination

Improved to Good Article status by Parsecboy (talk). Nominated by Oceanh (talk) at 12:27, 15 August 2014 (UTC).

Article was promoted to Good Article status yesterday. Offline sources accepted in good faith for paraphrasing and copyright issues. I'm slightly concerned about the use of a self-published source (O'Connell) although it isn't cited often in the text and the hook fact is cited to different sources (Williamson and Lowell). Hook fact is noteworthy and interesting; another possibility would be the U-21 sinking two battleships in three days. No QPQ required in this case. The proposed image is freely available under a valid license. Mackensen (talk) 00:22, 17 August 2014 (UTC)