Have you ever wondered what the difference between Great Britain, England, United Kingdom, and the British Isles were? How about Ireland versus Republic of Ireland? Well here is the answer to all your questions:

Source: http://leisureguy.wordpress.com/2008/02/05/the-great-british-diagram/

Source: http://leisureguy.wordpress.com/2008/02/05/the-great-british-diagram/