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.
Drag the two locators to bend the tree. This is a binary tree, which means it has two branches at each fork and one or two leaves at the end of each branch. You can create interesting patterns by simply changing the bending angles. Some patterns will look like real trees and others will look much more mathematical.