In APA citation format, there need to include Retrieved Date. What does Retrieved mean? What date should I put?

Answer 1

The retrieved date is the date that you found and read an internet article.

http://www.library.vanderbilt.edu/peabody/research/APAquick2007.html

Answer 2

what about if it is a website? Is it the date i first visited that website?

Answer 3

Yes, although the date I'd record is the date I actually studied the site and took notes. In other words, you might bookmark several sites one day -- and actually read them carefully several days later -- discarding the sites that weren't useful to you. Use the date that you actually read and decide to use the site.