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/20110107044847/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/username
A Username is the name that a person uses to identify themselves on a computer system. One computer can have many different users but if they all have different usernames (and passwords) then they can access their own accounts on that computer.