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/20110106181330/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/plaintext
Plain Text is a method of writing text without formatting it in any way. There is no italics, underlining or bold or even different fonts. As a result of this it is a very efficient way of storing text, Notepad uses plain text for example.