The reason is very simple - profit. 
The rabbits were not worth much to the Europeans, but were to the Aztecs, but the cocoa beans for the Europeans were like gold. They were a very attractive exotic product from which unique and unseen things were made. In the European market the cocoa beans had enormous price, and the demand for it was very high especially from the aristocracy which loved it and didn't speared money for it.
 
        
             
        
        
        
All of it... i cant see something as generaly important as a mountain being nonimportant anywhere
        
             
        
        
        
bottom one which you've ticked is correct
 
        
             
        
        
        
The following leap day is really on February 29th, 2016 (this year). 
This implies we need to include an additional day toward the end of February every 4 years. 
As you might know, the 28th is generally the most recent day of February, however because of the leap day, we add an additional day to make the general days of one year 366 rather than the standard 365. 
During the current year (2016) the 100th day of the year is on April ninth. 
On a 365 days calander, the 100th day of the year is on April tenth.