The Internet Archive discovers and captures web pages through many different web crawls.
At any given time several distinct crawls are running, some for months, and some every day or longer.
View the web archive through the Wayback Machine.
Web wide crawl with initial seedlist and crawler configuration from October 2010
TIMESTAMPS
The Wayback Machine - https://web.archive.org/web/20110106194816/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/css
CSS (Cascading Style Sheets) is a term of computer language that describes any structured document and it's presentation in HTML, XML or XHTML. This blueprint is upheld by the World Wide Web Consortium.