When was siri for the iphone created?

Siri was first created back in 2011 by Apple.  It's original use was for the Iphone as a virtual voice assistant that used artificial intelligence.  The voice of siri is done by Susan Bennett.  She is a voice over artist, and over the years siri has other voices that can be used too.  Siri can open applications on the iphone for you, give weather updates, set alarms and reminders, take notes for you, and automate most tasks that you can do on your iphone yourself.  Amazon Alexa was create two years after Siri because of the rise in popularity of virtual voice assistants.