Life, Birth
The birth of the mech who many consider either a symbol of peace or betrayal.
Aurora Borealis is the creation of Optimus and Megatron after the peace treaty between the Autobots and the Decepticons. As she is the creation of the two heads of faction, most of the population tend to see her as some sort of symbol. Many believe she was a political gesture only, but those who are closer to the two respective heads of faction know better. Very, very few tend to ask her own opinion on the matter, however.