A group of aliens will come on Earth visiting a city and such city will be quarantined for months - MARCH 2012

They will come between March 11 and March 30 2012 and they will land in a public place a L' Avana city in Cuba.
Such city will be immediately quarantined and this group of aliens will be able to survive and communicate in some way with citizens of l' Avana and the entire city will become a experimental laboratory to study aliens for many months.

It will be impossible to travel to and from L' Avana and food and water will be sent by air.
This huge historical event will be the most important event of year 2012 and news broadcasts of such event will be seen by way more people than the London Olympics.

This story will begin when, on December 3 - 14 2011, a spaceship will accidentally land on Earth and the case will be recognized as " the Second Roswell ".
The group of aliens will land in Cuba for purposes linked to that spaceship they lost.

People will receive pieces of news about this aliens and their characteristics during the year.
A huge CME event will black out the entire world for more than 60 days, starting by Columbus day ( event will be known as Columbus day Storm )on October 12 2012 and the aliens will intervene and help us.

United States will return to normality on October 19 2012 thanks to the help of the aliens, while some areas will be back to normal only after 66 days circa, but by December 16 2012 every area will recover from the CME event.
This black out would have lasted years without their help.

Anyway, countries like Britain, Italy, India, Pakistan will suffer huge riots and social/cultural changes and revolutions.

We will achieve time travel technology and technological singularity by February 23 2013.