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/20110106223934/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/lan
LAN or Local Area Network is used to describe a number of computers that are all linked to the same network. Many large companies have all their computers and printers networked for example.