Good article, but with at least one error:
"The largest military evacuation the world has ever seen..."
If memory, Google & Wikipedia serve me correctly, "In total 338,226 troops were evacuated (220,000 British, 120,000 French, some Belgian and Dutch, and even some German prisoners of war) aboard around more than 900 vessels."
People from all over Britain came in the small boats necessary to ferry troops from the beach to larger ships. Between May 28 and June 4, 1940 they rescued these troops from the advancing German army.
The Association of Dunkirk Little Ships has a great website at:
http://www.adls.org.uk/