We all know that on net
Wikipedia is a powerfull info service which almost keeps all info abt verything
but qwe may not know one thing about it which is " YOU CAN'T CHANGE ANYTHING IN
WIKIPEDIA". Not believing ??? What to do so but it's fact as you can only add to
it. Wikipedia is a database with a memory designed to last as long as we can
make it last. An article you read today is just the current draft; every time it
is changed, we keep both the new version and a copy of the old version. This
allows us to compare different versions or restore older ones as needed. As a
reader, you can even cite the specific copy of an article you are looking at.
Just link to the article using the "Permanent link" at the bottom of the left
menu, and your link will point to a page whose contents will never change.
(However, if an article is deleted, your permanent link will only work for