Talk:Princess Celestia/@comment-3410511-20140622183040/@comment-24908786-20140701154956

You're right, The Real SilverSpoon. Celestia and Luna's first entries in their Journal mention that Star Swirl asked them to become Princesses to help unite the three tribes as they represented all three as Alicorns.

Also, remember: Princess Platinum represented her father, King Bullion, in Hearth's Warming Eve, so it was nice that Celestia and Luna got to meet him in person so they could sort out problems with each tribe's leaders and second-in-commands.