Shows the various events that accompany the growth of the
Union and consists of the following fields.

Date - YYYYMMDD format - Shows the date in which the event occurred.
City - If applicable, the city where the event took place.
Country - If applicable, the country where it happened.
Event_name- A generalized name for the event
Event_Details - The actual details of the event.

Data sources:
1. http://www.deljpn.ec.europa.eu/modules/union/development/history/?ml_lang=en
2. http://europeanhistory.about.com/od/governmentandlaw/a/europeanuniontimeline.htm
3. Wikipedia
4. Google Maps