Why is the estimated population at 6.5 billion an event. 

We need a new section called Trivial.  This is not a historical event.  At best it is an estimate and then it is still trivial.  Unfortunately this is occurring over and over in these "On this Date" and making this into nonsence.

Also, the birth and death sections are growing and growing putting anyone's name there.  People of Wikipedia need to use some common sense before this section becomes useless.  Some days nothing significant happens.