Summoner Icon History

Hey Rito - I have been playing for a couple years and can't remember where some of my Summoner Icons came from. Any way to replace the explanation of what a summoner Icon is and replace it with a history of what event the Icons came from and maybe what was done to obtain them? Something like: This Icon Name was part of a promo in the Summer of 2012. Obtained by winning 12 games straight as a tank in the Asension map.

Thanks, Mr. Forgetful