Imperialism

Go to the Encyclopedia of Britannica by clicking on the link (<---).  When you get there answer the following questions in an e-mail and send them to me.  Do not copy and paste answers or ideas.  That defeats the purpose of reading and learning.  Even though the definition for #1 is pretty exact, please type it out to help you remember it rather than copy and pasting.  E-mail me your answers.

1.  What is the definition of Imperialism?
2.  What countries or societies have been Imperialistic during the Ancient times and what lands did they claim?
3.  What countries or societies have been Imperialistic during the modern era (3 parts) and what areas/countries were they Imperialistic (if the article doesn't say, don't worry about it but make sure it isn't there before you dismiss it).
4.  What are the 4 arguments for Imperialism found in the last 4 paragraphs?  I would like just the main thought from the paragraph not the whole specific explanation.