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/20101123100156/http://htmlhelp.com/reference/html40/block.html
HTML 4 Block-Level Elements
Most HTML 4 elements permitted within the BODY are classified as either block-level elements or inline elements. Block-level elements typically contain inline elements and other block-level elements. When rendered visually, block-level elements usually begin on a new line.
The following are defined as block-level elements in HTML 4:
The following elements may be used as either block-level elements or inline elements. If used as inline elements (e.g., within another inline element or a P), these elements should not contain any block-level elements.