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/20101206215723/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/media
Media is a term used to describe any kind of communication device such as a radio, television set or telephone. In computer terms it is more commonly referred to as equipment such as hard drives, memory cards and other such media storage devices.