It's permanent unless you get a new account!
What i did is, If you have Facebook, type your facebook name into images (Google) and sometimes its there, if not, try names you have had in the past on facebook :)
by the limit ANSWER: Way, way, past the limit, buddy!
Facebook has become very popular in the past year.
The country of russia has change its name in the past fifty years, it was origionally the ussr.
no
To cut the ties with the colonial past
Yes.
Facebook is by far the most popular to date. Twitter is currently quite popular, despite being much simpler than Facebook. In the past, Myspace competed with Facebook, but is in rapid decline given Facebook's massive growth in the past 3 years.
the butterfly effect
Chennai used to be called "Madras."
The past tense of change is changed.
Simply you can edit the existing event or delete it and make new event.